What element has the electron configuration #1s^2 2s^2 2p^6 3s^2 3p^4#?

1 Answer
Apr 16, 2016

Answer:

#Z=16#, therefore the element is silicon.

Explanation:

The neutral atom contains as many electrons, negatively charged particles, as positively charged particles, which reside in the nucleus. There are 16 electrons, and thus #Z#, the nuclear charge is necessarily #16#.

If #Z# #=# #16#, the element clearly silicon, #Si#. Capisce?