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sesenic [268]
3 years ago
7

Which of the following atoms would gain two electrons to fill its valence energy level? (2 points) Ca Br S B

Chemistry
1 answer:
Andrei [34K]3 years ago
4 0
Sulfur is the answer according to the 2'8-8 rule
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The ionization energies of Calcium are (in KJ/mol): 1st: 589.8 2nd: 1145.4 3rd: 4912.4
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Answer:

See whole explanation to understand

Explanation:

the reason why there is such a large jump from 2nd to 3rd ionization energy for calcium is because to remove the third electron, a larger amount of energy is required, since the shell is closer to the nucleus, and higher attraction exists between them. This is why the second ionization energy is 1125.4 and then the third IE is 4912.4 which is a very big difference. It's all about the elections and energy!!

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