Which of these statements is correct?

Carbon and nitrogen are adjacent in the Periodic Table.

Which properties do they both have?
1 There is an empty 2p orbital in one atom of the element.
2 The principal quantum number of the highest occupied orbital is 2.
3 They form compounds in which their atoms form bonds with four other atoms.

1 Answer
Dec 17, 2017

#2.# is the only correct statement....

Explanation:

Carbon, #Z=6#, and nitrogen, #Z=7#, have electronic configurations of #1s^(2)2s^(2)2p^2# and #1s^(2)2s^(2)2p^3#.

Clearly their electrons part fill the second shell... Both atoms can form bonds with 4 other elements (but not exclusively for nitrogen)...