What element has the electron configuration 1s^(2)2s^(2)2p^(6)3s^(2)3p^(2)?

1 Answer
anor277
Jan 18, 2016

Given that the element is neutral, and that there are 14 electrons, clearly Z, the atomic number = 14.

Explanation:

If Z = 14, the element is unequivocally indentified. Consult your handy Periodic Table.

It was given that there were 14 electrons. Given a neutral atom, there MUST be 14 positively charged particles in the element's nucleus. Thus Z, the atomic number, MUST be 14.

I'll give you a hint, the element's name starts with an "S", hmm, sulfur, selenium, scandium??????

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