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antiseptic1488 [7]
4 years ago
9

Lithium has 3 electrons. Why do 2 electrons go in the first shell, and one in the second?

Biology
2 answers:
alexandr1967 [171]4 years ago
7 0

Answer:

B

1st shell: 2 electrons

2nd shell: 8 electrons

3rd shell: 18 electrons

4th shell: 32 electrons

DiKsa [7]4 years ago
6 0

Hiya!

The answer to your question is B.

The first shell only holds 2 electrons so the 3rd electron had to go in the second shell

Explanation:

The first shell can only hold a maximum of 2 electrons, the third electron must go into the second shell. Therefore the lithium, which has three total electrons, will have two electrons in the first shell and one electron in the second shell.

~Hope this answers your question!~

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