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vodomira [7]
3 years ago
5

In most elements, the valence shell holds a maximum of how many electrons? A. 2 B. 4 C. 6 D. 8

Chemistry
1 answer:
Igoryamba3 years ago
7 0
Correct option D 8

In most elements the valence shell holds maximum 8 electrons
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Phosphorus has three isotopes, 31p, 32p, and 33p. the atomic number of phosphorus is 15. how many protons does each of the isoto
klemol [59]
<span>For isotopes of any element, the number of protons remains the same, BUT the number of neutrons changes. Since each of the isotopes listed is phosphorus, All three have 15 protons. (They have 16, 17 and 18 protons respectively.)</span>
5 0
3 years ago
Nuclei may be unstable if they have
weqwewe [10]
Nuclei may be unstable if they have
a too much energy.
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C an unstable ratio of protons to neutrons.
d any of the above.

The answer would be, D any of the above.
Hope this helps
3 0
3 years ago
HELLPPP PLZZ ASAPP!
Sphinxa [80]

Answer:

Condensation and Depositon

Explanation:

Condensation is from gas to liquid

Deposition is from gas to solid

7 0
3 years ago
The air at the top of Mount Everest has pressures of 201.0 torr N2, 50.0 torr O2, 2.0 torr Ar, and 0.5 torr CO2. What is the tot
nordsb [41]

Answer:

The total air pressure at the top of the highest peak in the world is 253.5 torr

Explanation:

The partial pressures of the gases present at the top of Mount Everest are;

Nitrogen, N₂ = 201.0 torr

Oxygen, O₂ = 50.0 torr

Argon, Ar = 2.0 torr

Carbon dioxide, CO₂ = 0.5 torr

By Dalton's law of partial pressure, the total pressure that a mixture of gases exerts is equal to the sum of the partial pressures of the individual gases

Mathematically, the law can be expressed as follows;

Total pressure, P = ∑P_i = P₁ + P₂ + · · ·

From which we have;

The total air pressure at the top of the highest peak in the world, Mount Everest, P_{Total Mont Everest} = The sum of the partial pressures of N₂, O₂, Ar, and CO₂

P_{Total Mont Everest} = 201.0 torr + 50.0 torr + 2.0 torr + 0.5 torr = 253.5 torr

P_{Total Mont Everest} = 253.5 torr = 0.33355263 atmosphere

Therefore, the total air pressure at the top of the highest peak in the world,  P_{Total Mont Everest} = 253.5 torr

3 0
2 years ago
HI PLEASE HELPPPL I NEED THIS DUE VERY SOON
Liono4ka [1.6K]

Answer:

A

Explanation:

I just did this question in class:))

8 0
3 years ago
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