The first model represents the proton and neutron distribution in the nucleus of four helium isotopes. The second image shows the entry for helium in the periodic table. Based on the information in the periodic table, which is the most common isotope of helium?


Answers

Answer 1

Answer:

Helium exist as an isotope, its most common isotope is the one that is placed on the periodic table. The helium atom on the periodic table has two electrons, two protons and two neutrons. The proton and the neutron are located inside the nucleus, this means that two protons and two neutrons can be found inside the helium nucleus. Thus, in the pictures given above, the correct picture is the one that contain four particles.

Explanation:


Related Questions

In which areas does acid rain most likely form before precipitating in locations downwind?
A large cities with a high volume of smog
B large cities with a low volume of smog
C coastal cities that are not developed
D small farming areas near lakes

Answers

Answer:

A) large cities with a high volume of smog

Explanation:

What do cells have in common

Answers

Answer:

All cells have these four parts in common: a plasma membrane, cytoplasm, ribosomes, and DNA.

Explanation:

Answer:

All cells share four common components:  

a plasma membrane, an outer covering that separates the cell’s interior from its surrounding environment

 cytoplasm, consisting of a jelly-like region within the cell in which other cellular components are found

DNA, the genetic material of the cell

ribosomes, particles that synthesize proteins. However, prokaryotes differ from eukaryotic cells in several ways.

Can someone explain to me the groups of invertebrates, their characteristics, and their examples.

Answers

Answer:

invertebrates are animals that lack back bone like protozoans such as amobas and paramecia,annelids such as earth worm ,spongs, comb jellies ,hydras

Sponges, jellyfish, worms, snails, and squids. These are just a few of the many types of invertebrates.
...
Classification of Invertebrates.
Phylum (includes) Notable Characteristics Example
Arthropoda (insects, spiders, crustaceans, centipedes) segmented body, jointed appendages, exoskeleton, brain insect (dragonfly)
Hope it helps

ATP contains a large amount of energy because _____.

Answers

Answer:

ATP contains a large amount of energy because it has high-energy phosphate bonds.

Explanation:

glad could help pls mark brainless!

Easy 62 Points (will give brainliest)

Short Answer

Answer the following questions in complete sentences.

26. Outline the relationships between forces and motion.


27. Explain why it is easier to move a heavy box on a dolly than it is to slide the box over the ground.


28. Identify two forces that come into play when you jump on a trampoline. Explain how the forces work.

Answers

Answer:

26. The relationship between force and motion is that force affects the state of motion. It can cause motion to happen and it can cause it to stop.

28. Forces of action and reaction: each time you push down on the trampoline, an equal and opposite reaction will push back.

i have not answered 27 because am not quite sure and i don't want to mislead you.

hope this helps.

What kind of genetic factors affect algae growth?

Answers

ANSWER :

Algae prefer stable conditions. Low water levels create slower, more uniform conditions that encourage algae growth. Warmer water leads to increased algae growth. The temperature of the water may even favor the growth of certain types of algae over others. Nutrients, like nitrogen and phosphorus, fuel algae growth; however, excess nutrients from human activities can exacerbate algae blooms.

Find the curved surface area, total surface area and volume of the following cylinders.
(a)height is10 cm and radius is7cm
(b)height is 20cm and diameter is 14cm

Answers

Answer:

Explanation:

Curved S.A-πdh

Volume=πdh

22/7 ×14×10=440cm²

22/7×7×7×10=1540cm³

22/7×14x2=88cm²

440+88=528cm²

B

Csa 22/7×20×14=880cm²

Volume 22/7×7×7×20=3080cm³

Total sa

2Dπ=22/7×14×2=88cm2

88+880= 768cm²

Which of these is an example of a PHENOTYPE?
A-an allele for yellow flower color within a flower's genome
B-yellow flower color
C-a gene that tells how big someone's nose will be
D-two identical alleles for nose size

Answers

I think this is B: Yellow Flower Color

I think phenotypes focus on the physical characteristics rather than the alleles and genes (genotypes).

- Cells control gene expression at which steps?

transcription, translation, and the formation of the final protein

interphase, prophase, and metaphase

mitosis, meiosis, and the formation of the final protein

transcription, mitosis, and DNA replication

Answers

Answer:

A.

Explanation:

The cells control gene expression at transcription, translation, and the formation of the final protein.

What do you mean by gene expression?

Gene expression is the process by which information from a gene is used in the synthesis of a functional gene product that enables it to produce end products, protein or non-coding RNA, and ultimately affect a phenotype, as the final effect.

Gene expression is the process by which the information encoded in a gene is turned into a function. This mostly occurs via the transcription of RNA molecules that code for proteins or non-coding RNA molecules that serve other functions.

Gene expression is a tightly regulated process that allows a cell to respond to its changing environment. It acts as both an on/off switch to control when proteins are made and also a volume control that increases or decreases the amount of proteins made.

Learn more about gene expression:

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Unattached earlobes is a dominant trait, E. A parent who is homozygous for unattached earlobes is crossed with a parent who is
homozygous for attached earlobes. Which describes the genotypes of their offspring?
100 percent Ee
100 percent unattached earlobes
100 percent ee
100 percent attached earlobes

Answers

Answer:

100 percent Ee

Explanation:

This is a cross involving a single gene coding for attachment or not of earlobes. The allele for unattached earlobes (E) is dominant over the allele for attached earlobe (e). This means that allele E will always mask the phenotypic expression of e in a heterozygous state.

A parent that has same alleles for unattached earlobes i.e.  EE is crossed with a parent that has same alleles for attached earlobes i.e. ee. In this cross, all of the offsprings will have a heterozygous genotype, Ee because gametes E and e will be produced respectively by each parent.

Hence, since all of the offsprings will have an Ee genotype, it means 100% of their offsprings will have Ee (HETEROZYGOUS).

Answer:

Its A or 100% Ee

Explanation:

edge 2022

Drinking non-potable water does not carry significant health risks. Please select the best answer from the choices provided T F

Answers

Answer:

false

Explanation:

Drinking non-potable water does not carry significant health risks. The given statement is false.

What is drinking non-potable water?

Non-potable water is the water which is not treated to drinking water standards and it is not meant for the human consumption. Non-potable water, such as the raw or untreated water from the reservoirs. Non-potable water is used for the irrigation and other purposes, in addition to recycled water which is used for highly-treated wastewater.

Microbiologically, the contaminated drinking water can transmit diseases such as the diarrhea, cholera, dysentery, typhoid and polio and it is estimated to cause over 485000 diarrheal deaths each year.

Learn more about Non-potable water here:

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where has the population reached the carrying capacity in the Graph shown above? (need help quick!)
A. point C
B. point B
C. point A
D. point D

Answers

Answer:

The correct answer is option D. point D.

Explanation:

Carrying capacity is characterized as the maximum populace size that a domain can continue inconclusively.  For most species, there are four factors that factor into figuring the carrying capacity of an individual population: food accessibility, water resources, habitat, and ecological conditions.

In a graph representation of population size in a time period increases until it reaches carrying capacity, carrying capacity is representing in the graph where the increase in curve becomes stable and makes a plateau.

Thus, the correct answer is option D. point D.

Answer:

D point D

Explanation:

Photosynthesis is an example of

Answers

Answer:

autotrophic nutrition

Answer:

Photosynthesis is an example of Anabolism and endergonic reactions.

Explanation:

Photosynthesis is the process by which plants, some bacteria, and some protistans use the energy from sunlight to produce glucose from carbon dioxide and water.  Hence Photosynthesis is an example of Anabolism and endergonic reactions.

HOPE IT HELPS :)

Earth's moon _____. Has a thick atmosphere that protects it from asteroids rotates in the same amount of time that it revolves has more gravity than Earth is the largest satellite in the solar system

Answers

Answer:

The Earth moon rotates in the same amount of time that it revolves.

Explanation:

The moon is the only Earth's natural satellite and it orbit round the Earth. It is the fifth largest natural satellites. It was formed not long after the formation of the Earth. The moon rotates on its axis . The moon rotate once and it's matches the period it's orbit making it to keep the same side facing of the Earth. This means that the moon the moon rotates once every time it revolves the Earth.

which is not an example of inorganic fertilizer? A.nitrogen fertilizer B.phosphorus fertilizer C. Livestock waste​

Answers

Answer:

Livestock waste

Explanation:

Fertilizers supplement the soil with macronutrients needed in large amounts: nitrogen, phosphorous and potassium. However, organic and inorganic fertilizers do so via different materials. Organic fertilizers contain only plant- or animal-based materials that are either a byproduct or end product of naturally occurring processes, such as manures, leaves, and compost.

Inorganic fertilizer, also referred to as synthetic fertilizer, is manufactured artificially and contains minerals or synthetic chemicals. For example, synthetic nitrogen fertilizers are typically made from petroleum or natural gas. Phosphorus, potassium and other trace elements in inorganic fertilizers are often mined from the earth. Balanced inorganic fertilizers, high in all three macronutrients, commonly include products like ammonium nitrate, ammonium sulfate, potassium chloride (potash), triple superphosphate, and magnesium sulfate (Epsom salts).

Answer:

Hey!

C. LIVE STOCK WASTE is your answer!

Explanation:

Waste from cattle/pigs/goats/hens and other animals in the farm all contain organisms which live in the waste...this is how the waste is decomposed and formed into natural fertilisers

THE REST DO NOT CONTAIN ANY ORGANIC MATTER...

HOPE THIS HELPS!!

The outbreak in spread epidemic diseases such as swine flu are tracked by? A epidemiologist or a sonographer

Answers

Answer:

An epidemiologist

Answer:

A g I need the same answer homie

Explanation:


A human baby is born with one X chromosome and one Y chromosome. What
must be true about this baby?
A. The baby is female
B. The baby is haploid
C. The baby is prokaryotic
D. The baby is male

Answers

Answer: d) the baby is male

Explanation: Ovules contain X chromosomes whereas sperms come in two types: one type contains x chromosome and the other contains Y chromosome.

When a sperm containing X chromosome fertilises with an ova, the zygote will have two X chromosomes. This zygote would develop into a female child. When a sperm containing Y chromosome fertilises with an ova, the zygote will have one X and one Y chromosome. This zygote would develop into a male child.

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Answer: the baby is male

Explanation: female babies are born with 2 X chromosomes. Haploid babies have a one set of unpaired chromosomes. It’s impossible for a baby to have an X and Y chromosome pair and be prokaryotic. Males have one X chromosome and one Y chromosome, so it has to be male.

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Genetic disorders can result when sister chromatids fail to separate properly. During which phase is this problem most likely to occur?

A: g1 phase
B:g0 phase
C: Cytokinesis
D:Mitosis

Answers

The correct answer is mitosis

Select the correct answer.
How many particles are in a mole?

Answers

23 particles
6.02214076•10^23

A mining company is interested in monazite, a mineral substance that forms in igneous rock in Earth’s interior. They think they found a lot of monazite in a sedimentary rock formation at Earth’s surface. Could this really be monazite? If so, how could the monazite have become part of sedimentary rock?

(ANSWER QUICK)

Answers

Answer:

Yes. It could be monazite.

Monazite is formed during crystallization of igneous rocks.

It is formed during the metamorphosis of clastic sedimentary rocks. When rocks weather, monazite is one of the resistant minerals that is left and then it increases it's Concentration in the debris of weathered rocks.

Explanation:

Monazite is a rare phosphate mineral that is found in igneous rocks and metamorphic rocks like granites, schist, gness. Monazites are resistant to weathering and they are found in sediments. It formed crystals, it is translucent and hard seen. It is an important sources of thorium, cerium and other rare elements.

Yes. It is monazite.

Monazite could be created at the time of crystallization of igneous rocks.

The following information regarding the monazite is:

It could be formed at the time of metamorphosis with respect to the sedimentary rocks.It is to be treated as the resistant minerals i.e. left and afterward, it rises. It is the mineral i.e. phosphate could be found in igneous rocks & metamorphic rocks such as granites, etc. Also, it created the crystals.

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The T allele codes for tall stems in pea plants and the tallele codes for short stems. Which of the
following are possible genotypes for the offspring from a cross of Tt x tt?
a TT and tt
b. Tt
C. TT and Tt
d. Tt and tt

Answers

Answer:

D Tt and tt

Explanation:

In one punnet square you will have Tyler in the other three will be tt

Answer:D

Hope this helped if not please contact me so I can explain :)

Match each environmental change with its description.



Chemicals react with water and oxygen that enter water systems.


arrowBoth


Nutrients in excessive amounts enter water systems, causing algal bloom.


arrowBoth


A high concentration of toxic chemicals is present in the bodies of animals at the highest trophic levels.


arrowBoth

Answers

Answer:

The question is incomplete, the missing part i.e. the environmental change is:

(A) biomagnification

(B) acid rain

(C) eutrophication

The answers are:

1. Acid rain- Chemicals react with water and oxygen that enter water systems.

2. Eutrophication- Nutrients in excessive amounts enter water systems, causing algal bloom.

3. Biomagnification- A high concentration of toxic chemicals is present in the bodies of animals at the highest trophic levels

Explanation:

1. Acid rain is an environmental disorder in which rainfall becomes acidic due to pollution. The pollution is as a result of the release of gaseous chemicals e.g sulfur, nitrogen oxide, which are produced by industries, into the atmosphere. These chemicals then react with water in the atmosphere to form acidic solutions, which then falls back as rain. Hence, chemicals reacting with water and oxygen that enter water systems describes ACID RAIN.

2. Eutrophication is the pollution of water bodies with substances containing chemicals like nitrogen, phosphorus etc. The chemicals, which are in excess, serve as nutrients to algae, which uses them to grow excessively forming a bloom called ALGA BLOOM. Hence, nutrients in excessive amounts entering water systems, causing algal bloom describes EUTROPHICATION.

3. Biomagnification refers to the build up or accumulation of toxic chemical substances in the body systems of living organisms higher up in the food chain. Pollutants like pesticides, herbicides flow into water bodies and are absorbed by certain aquatic organisms. When these organisms are fed on by consumers, the harmful substances accumulates in their tissues until it reaches a maximum concentration. Hence, a high concentration of toxic chemicals present in the bodies of animals at the highest trophic levels describes BIOMAGNIFICATION.

Answer:

1. Acid rain- Chemicals react with water and oxygen that enter water systems.

2. Eutrophication- Nutrients in excessive amounts enter water systems, causing algal bloom.

3. Biomagnification- A high concentration of toxic chemicals is present in the bodies of anima

Explanation:

help please! our existing body of scientific knowledge was developed

Answers

Answer:

The answer should be C: mostly in the 20th century

Explanation:

Answer: D

Explanation: Throughout history

The___is also called the dark reaction in photosynthesis

Answers

Answer:

The answer is Carbon-Fixing Reactions or Light Independent Reactions.

Explanation:

What is the lava like that produces an eruption like this one? A. thin and runny B. thick and runny C. thick and sticky D. thin and rich in gas

Answers

it could be either A or B depending on how much it’s been

What do you do when you have abdominal pains?

Answers

Answer:

Use ginger, drink tea, chew peppermint gum, or simply use a heating pad.

can anyone say me the answer please ​

Answers

Answer:

The answer to this question is B

What is true of table salt?


D.It has simple molecules.

C.It has only one element.

B.It is an ionic compound.

A.It has radicals.

Answers

Answer:

c because it is

The center of the cross section of a root contains called​

Answers

Answer:

pith

Explanation:

The root is from a monocot and this central tissue is called the pith, like what is found in stems.

pith is the answer hope you get it right

HELP ME OUT PLEASE KISSES WILL BE AWARDED

Answers

Answer:

what kisses i want one if you giving them away

Explanation:

because i want one not bad but i want one

Answer:

3200g

Explanation:

n=pv/RT

n= 3000 x 83.1 / 8.31 x 300

n = 100

n= mass/molarmass

100= m/32

m=3200g

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Which one is coorect ?A-) The London is a city in England.B-) The London is a city in the England.C-) London is a city in England.D-) London is a city in the England. What recent technological breakthrough can be compared in importance tothe invention of paper nearly 2,000 years ago?A. Supersonic airplanesB. Communication via telegraphC. Electronic communicationD. Radio broadcasting Trina examined the equation below and said that the equation has exactly one solution. Negative 8 (x minus 4) + 2 x = negative 4 (x minus 8) minus 2 x Which explains whether Trina is correct? A. Trina is correct because the two sides of the equation are equivalent. B. Trina is correct because the two sides of the equation are not equivalent. C. Trina is not correct because the two sides of the equation are equivalent. D. Trina is not correct because the two sides of the equation are not equivalent. How does charging by conduction work? Part CWhat is important about the progressive dates on the map? A young couple is planning for the education of their two children. They plan to invest the same amount of money at the end of each of the next 16 years. The first contribution will be made at the end of the year and the final contribution will be made at the end of the year the older child enters college. The money will be invested in securities that are certain to earn a return of 8% each year. The older child will begin college in 16 years and the second child will begin college in 18 years. The parents anticipate college costs of $25,000 a year (per child). These costs must be paid at the end of each year. If each child takes four years to complete their college degrees, then how much money must the couple save each year What is the answer to x>-8 Who belonged to the poorest class during the Middle Ages? Vector performed an experiment at a local farm to determine if the addition of bananas to his biomass cow manure recipes helps produce more or less energy. He collected random samples of manure and bananas from the farm, prepared 15 bottles of each of both mixtures, and placed a balloon on top of each bottle. After two weeks he measured the circumference of each balloon in centimeters; the bigger the balloon grew, the more energy that was produced. The results of the experiment are displayed in the box plots below.Which description most accurately summarizes the sample results? Mrs. opsahl drove 399 miles on 14 gallons of gas.how many miles per gallon did her car get Add.3x2 - 5x+12x2 +9x-6+A. 5x2 + 4x+7B. 5x2 - 4x + 5C. 5x2 + 4x - 5D. 5x2 + 14x - 5 A city has a population of 2.8 million people. 45% of the population are male. How many females live in the city? PLEASE HELP ASAP IM BEHIND RIPWithout using a protractor, you can determine whether the angles are right angles by measuring the length of the diagonal and applying the converse of the Pythagorean Theorem.The length of both diagonals for each lateral side is 13 centimeters. From this, can you prove that the lateral sides are rectangles? Why or why not? Magpie Corporation uses the total cost method of product pricing. Below is cost information for the production and sale of 60,000 units of its sole product. Magpie desires a profit equal to a 25% return on invested assets of $700,000. Fixed factory overhead cost $38,700 Fixed selling and administrative costs 7,500 Variable direct materials cost per unit 4.60 Variable direct labor cost per unit 1.88 Variable factory overhead cost per unit 1.13 Variable selling and administrative cost per unit 4.50 The markup percentage on total cost for Magpie's product is Which is NOT one of the four divisions of plants? *A. ConifersB. ConiferophytaC. Cyads A miniature golf course recently provided its customers with 6 golf balls, of which 3 were blue. What is the experimental probability that the next customer will receive a blue golf ball? 1. Which countries in East Africa have high temperatures for much of the year? Given the following table, find the rate of change between f(-1) and f(2). x -1 0 1 2 3 f(x) -2 -1 At Shimla, temperature was -1 on Saturday and rose by 3 on Sunday. What was the temperature on Sunday? 1-the principle of recycling applies only to open systems True/False 2-It is important that measurements be consistent in engineering becauseA-There is only one established system of measurement available B-there is one unit that is used to measure weight, length and distanceC-engineers often work together internationally and replicate each others' results