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Which is the electron configuration for lithium? 1s2 2s3 1s22s1 1s12s2
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4 votes
Which is the electron configuration for lithium?
1s2
2s3
1s22s1
1s12s2

User Prajosh Premdas
by
4.7k points

2 Answers

7 votes

Answer:

1s2, 2s1

Step-by-step explanation:

Lithium is the first element in the 2nd row of elements meaning its 1s orbital is completely filled and 1 electron is in the 2s orbital.

User Lionel Hamayon
by
4.5k points
6 votes

Answer:

the answer is C

Step-by-step explanation:

User Fabio Ferrari
by
4.2k points
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