Verified Answer :

Emma12321

Maybe sodium? becasue its an element and I would like some points... sorryy:((((

tatendagota

Answer:

Carbon

Explanation:

Data:

The element must have the configuration:

1s². 2s²2p²

In other words, the number of valence electrons should be 4 (2s²2p²). Looking at the periodic table, carbon fits the criteria.

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