Question

1s2 2s2 2p6 3s2 3p6 4s2 how many electrons are present​

Answer 1

Answer:

Also, if you look at the last number/letter combination, you can go directly to that spot on the periodic table to determine the element. Example: 1s2 2s2 2p6 3s2 3p6 4s2 3d3 (This has a total of 23 electrons which equals the atomic number of V – Vanadium.).

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Answer 2

Answer:

Good morning

Explanation:

have a nice day