What is the atomic mass of the element in period 2, group 13?
Answers
Groups go horizontal
Periods go vertical
The atomic mass of the chemical element in period 2, group 13 is: 26.982 u
A periodic table can be defined as an organized tabular array of all the chemical elements typically arranged in order of increasing atomic number (in rows).
Basically, a periodic table comprises eighteen (18) columns and seven (7) rows.
Groups, families of elements are represented by the vertical rows on the periodic table while the periods of chemical elements are represented by the horizontal columns.
On the periodic table, the chemical element that is found in period 2, group 13 is Aluminum (Al) with an atomic number of 13 i.e it has 13 protons.
In conclusion, the atomic mass of Aluminum (Al) is 26.982 u and it is found in period 2, group 13 of the periodic table.
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Related Questions
PLZ HELP?!!
A mountain climber starts at the base of a mountain, climbs all the way to the peak, and then climbs back down to the base. At which point is the climber's potential energy the lowest?
A. At the peak
B. At the end of the climb
C. Halfway down from the peak
D. Halfway up to the peak
EXPLAIN PLZ
Answers
The point at which the climber's potential energy the lowest is at the end of the climb. Option B
What is the potential energy?The potential energy is the energy that is possessed by a body as a result of the fact or the position of the body. Thus, the position of a body is an important factor in the determination of the potential energy of the body.
Considering the trajectory of the climber, we can see that the lowest energy of the climber is attained when the climber is at the base. Thus, the point at which the climber's potential energy the lowest is at the end of the climb.
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All of the following are physical characteristics used to determine race except
a. skin color
C hair texture.
b. eye color
d. body structure.
Answers
The physical attributes that are used to determine race may not include body structure.
Body structures are generally influenced by the environment that a person lives or what they do irrespective of whether it is genetic or otherwise.
Skin color, hair texture, and eye color, however, are determined by genes located on human chromosomes. Thus, these attributes give an indication of the race that a person belongs.
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ANALYZE According to the Logistic Growth graph, in
what year did the limited availability of resources cause
the population to begin to stabilize?
O a year 1
Ob.year 3
O c.year 5
O d. year 7
Answers
Answer:
year 7
Explanation:
how do we know if in a food chain for example an animal has been taken away from it then how do we know if it increases or decreases or stay the same.
Answers
Answer:
look it up
Explanation:
it should give you the answer
Which fungus is unicellular? chytrid yeast truffle penicillium
Answers
Answer:
Yeast:Unicellular fungus(often referred to as yeastOther examples:Saccharomyces cerevisae(Bakers yeast)Candida SpeciesExplanation:
Hope it helps
Which branch of earth science includes the study of the stars
Answers
Answer:astronomy
Explanation:
Because astronomy is the study of the stars
A kayaker moves 22 meters northward then 18 meters southward and finally 24 meters northward?
Answers
Answer:
28 meters northward
Explanation:
22 - 18 + 24 was the easiest equation, so I went with that:
22 - 18 = 4, 4 + 24 = 28
The kayaker landed 28 meters northward.
Hope this helped.
If an organism's haploid number of chromosomes is 10, it's diploid number is
Answers
If an organism's haploid number of chromosomes is 10, its diploid number is 20.
What is a chromosome?
A chromosome is a thread-like structure found in the nucleus of cells that carries genetic information in the form of genes. Chromosomes are made up of DNA, which is a chemical compound that contains the instructions for the development and functioning of all living organisms.
In most organisms, chromosomes are arranged in pairs, with one chromosome of each pair inherited from each parent. The complete set of chromosomes in an organism is known as its genome. The genome of an organism contains all of the genetic information necessary for the organism to develop, grow, and function.
Chromosomes come in different sizes and shapes, and the number of chromosomes can vary among different species. For example, humans have 23 pairs of chromosomes, for a total of 46 chromosomes, while dogs have 39 pairs of chromosomes, for a total of 78 chromosomes. The number and arrangement of chromosomes can play a role in the characteristics and traits of an organism.
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What would a hunter be more likely to bring home? A Berries B A catfish C A cricket D Bananas
Answers
Answer:
B or C. I'm not sure which. I hope this helps, anyway!
What are Inference's prefix and suffix and their definitions?
Answers
Answer:
A prefix is a group of letters (or an affix) that's added to the beginning of a word, and a suffix is an affix that's added to the end of a word. ... Prefixes modify the meaning of a word. They can make a word negative, show repetition, or indicate opinion.
Question 1 of 10
Lipids and proteins are both types of what?
A. Elements
B. Carbohydrates
O C. Atoms
O D. Macromolecules
Answers
Answer:
D. Macromolecules
Explanation:
Lipids and proteins are both types of macromolecules. Macromolecules are molecules made up of more than one atom, and they are larger than other types.
Question 7 (Multiple Choice Worth 5 points)
(01.03 MC)
What is an advantage of a pneumatic nail gun compared to a regular hammer and nails?
O it is easier to carry and store.
O It uses compressed air, which helps the nails be placed more consistently and accurately.
O It uses gasoline and is meant for outdoor use.
O It uses pressurized liquid, which allows it to do more heavy-duty work
Question 8 (Multiple Choice Worth 5 points)
Answers
calculate the weight of an object whose mass is 30 kg and acceleration due to gravity 10 m/s2
Answers
Answer:
300 N
Explanation:
[tex] m = 30 \: kg \\ g = 10 \: m {s}^{ - 2} \\ w =? \\ \because \: w = mg \\ \therefore \: w = 30 \times 10 \\ \therefore \: w =300 \:N \:(Newton) [/tex]
The weight of the object having a mass of 30 Kg is 300 N
The weight and mass of an object are related according to the following equation:
W = mgWhere:W is the weight
m is the mass
g is the acceleration due to gravity.
With the above formula, we can obtain the weight of the object as follow:Mass (m) = 30 Kg
Acceleration due to gravity (g) = 10 m/s²
Weight (W) =?W = mg
W = 30 × 10
W = 300 NTherefore, the weight of the object is 300 N
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I will give brainliest!!! Which organelle, if punctured, would leak digestive enzymes into the cell's cytoplasm? Choose 1 answer: (Choice A) A Nucleus (Choice B) B Lysosome (Choice C) C Mitochondria (Choice D) D Chloroplast
Answers
Answer:
B. Lysosome
Explanation:
It contains digestive enzymes.
Answer:
The answer is a
What structures does the plant
cell have that an animal cell does
not?
Answers
Answer:
Only plant cells contain chloroplast and a cell wall.
Chloroplasts: trap energy from the sun to produce food for the plant cell
Cell wall: provides support and protection to the cell membrane.
Hope this helps.
Answer:
Centersome, lysosomes
Explanation:
Animal cells each have a centrosome and lysosomes, whereas plant cells do not.
Hopefully this helped!
-✩sandwichchan✩
Why is aluminum foil not considered a mineral
Answers
Answer:
Bauxite itself is a rock, not a mineral.
Explanation:
It is used in the United States in packaging, transportation, and building. Because it is a mixture of minerals.
Why are Mercury ,Venus ,Earth and Mars called the ¨terrestrial ¨ planets?
Answers
Carrie is conducting an experiment on a solution. The solution's initial pH is 3.2. Then, as Carrie gradually adds Compound X into the solution, the pH increases to 9.8. Which is the most likely identity of Compound X?
Answers
Answer:
B. a strong base, such as sodium hydroxide (NaOH)
Explanation:
El Niño is caused by __________. A) ocean currents B) the isolation of continents C) orography D) all of the above
Answers
Answer:
A) ocean currents is correct
Explanation:
El Niño is caused by ocean currents. So, the correct option is (A).
What are Ocean currents?An ocean current is a type of continuous, directed movement of ocean water that is generated by a number of forces acting on the water including wind, the Coriolis effect, breaking waves, cabling, and temperature and salinity differences.
These can be caused by density differences in air, water masses that occur due to temperature and salinity variations, gravity, and events such as earthquakes or storms. These are continuous streams of sea water that spread through the ocean.
An El Niño condition typically occurs when surface waters in the equatorial Pacific become warmer than average and easterly winds become weaker than normal.
Thus, El Niño is caused by ocean currents. So, the correct option is (A).
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Which of the following is a part of endomembrane system of eukaryotic cell?
a) Peroxisomes
b) Chloroplasts
c) Mitochondria
d) Golgi complex
Answers
Answer:
Golgi complex.
Complete the sentence using one of the following words:
metabolism, homeostasis, or reproduction,
All living things try to maintain a stable internal environment,
also known as ____, regardless of the external
conditions in which they live.
Answers
Answer:
The answer is Homeostasis
Explanation:
Claire is measuring the physical properties of two objects.
Object 1 has a greater mass then Object 2, and Object 2 has a
greater volume than Object 1. Which of the following must be
true about the two objects?
Answers
Answer:Object 1 is denser than Object 2
Explanation:Greater mass Greater density xD
Nitrogen containing fertilizer are used by farmers to promote crop and plant growth. These fertilizers can runoff into various nearby water bodies. In a process called eutrophication, nitrogen dissolves in a body of water and stimulates the growth of plants and algae. When these plants and algae die, bacterial populations feeding on the dead material increase and consume a lot of oxygen in the water. Which of the following is likely to occur as a result of using nitrogen containing fertilizer?
Answers
Answer:
This process will harm marine life due to scarcity and reduction of oxygen levels. This will significantly harm the marine ecosystem as well.
Due to a lack of oxygen and other factors, this procedure will destroy marine life. The marine ecology will also suffer considerably as a result of this.
What is the importance of nitrogen in the environment?Farmers employ fertilizers that contain nitrogen to encourage the growth of their crops and plants. These fertilizers may leak into a number of surrounding bodies of water.
Nitrogen dissolves in a body of water through a process known as eutrophication, which promotes the growth of plants and algae.
Fertilizers give plants the nutrients' potassium, phosphorus, and nitrogen, so they can grow larger, more quickly, and generate more food.
Therefore, nitrogen in particular is a vital ingredient for the growth of every living on Earth.
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Which of the following macromolecules is matched with its correct role in the cell?
Choose 1 answer:
Choose 1 answer:
(Choice A)
A
Lipid — storage of short-term energy
(Choice B)
B
Lipid — chemical messenger
(Choice C)
C
Carbohydrate — key component of cell membrane (lipid bilayer)
(Choice D)
D
Nucleic acid — chemical messenger
Answers
Answer:
(choice b) Lipid — chemical messenger
Which of the following is a characteristic of cancer cells?
A-Viral disease
B-Have a specialized job
C-Will die after replicating 5 times
D-Loss of cell cycle control
Answers
Answer:
D. Loss of cell cycle control
Explanation:
Negative regulators of the cell cycle may be less active (or even nonfunctional) in cancer cells. For instance, a protein that halts cell cycle progression in response to DNA damage may no longer sense damage or trigger a response.
Protons have a positive charge, electrons have a negative charge, and neutrons have no change. Given this information, if an atom is comprised of 5 protons, 4 electrons, and 5 neutrons, what is the charge (if any) on this molecule?
Answers
how many atoms form that molecule?
What does the word "conversely" mean?
Answers
Answer:
introducing a statement or idea which reverses one that has just been made or referred to.
Explanation:
Answer: introducing a statement or idea which reverses one that has just been made or referred to.
Explanation: used the dictionary as source
Based on what you know about enzymes, explain how the student may have measured the polyphenol oxidase activity.
Answers
Answer:
Enzymes create chemical reactions in the body. They actually speed up the rate of a chemical reaction to help support life. The enzymes in your body help to perform very important tasks. These include building muscle, destroying toxins, and breaking down food particles during digestion.
Explanation:
Which statement is true about white light?
White light contains all the colors of the rainbow.
White light can be made of any two of the primary colors of light.
White light has a wavelength between the wavelengths of blue and yellow.
Answers
Answer:
white lighf contains all the colors of the rainbow
Identify the choice that best completes the statement or answers the question.
Tamar is talking about evolution with a friend. The friend says, "It's just a theory,
so I don't believe it. When they prove it and it becomes the law of evolution, then
maybe I'll change my mind."
Which of these possible replies best describes scientific principles or the work of
scientists?
Scientific theories do not become scientific laws; they are explanations for natural
phenomena based on evidence.
Scientists take each other at their word regarding experimental results, and the public
should, too.
O He should be wary of science because it is based on research and evidence, not bias and
opinion.
Science always finds the right answer; the answers that scientists and researchers
discover never change.
Answers
Answer:
The answer is: Scientific theories do not become scientific laws; they are explanations for natural phenomena based on evidence.
Explanation:
The other answers talk about how 1) Science should be bias or opinion based 2) Scientists only take each other's word and 3) Science never changes. All of these are false. Science does sometimes change, it should not be bias or opinion-based, and scientists do not always take each other's words.
Answer:
Scientific theories do not become scientific laws; they are explanations for natural phenomena based on evidence.
Explanation:
