3 years ago

Element 2 is: A) Cobalt B)Chlorine C)Calcium D)Carbon

Chemistry

1 answer:

saul85 [17]3 years ago

4 0

Answer:

D: Carbon

Explanation:

Carbon is the sixth element with a total of 6 electrons in the periodic table. Hence the atomic number Z = 6. The ground state electron configuration of carbon is 1s2 2s2 2p2. An excited state electron configuration of carbon is 1s2 2s1 2p3.

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