3 years ago

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

1 answer:

Lelu [443]3 years ago

4 0

Answer:

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

Explanation:

Electrons fill up from smallest to largest, the first electron shell only holds 2 electrons, so the remaining electron had to go to the second shell.

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