The element with electron configuration 1s2 2s2...
The element with electron configuration 1s2 2s2 2p6 3s2 3p1 belongs to
s-block period 3, group 1
p-block, period 3, group 2
s-block, period 3, group 3
p-block, period 3, group 3
Correct answer is D
1s2 2s2 2p6 3s2 3p1 = 2, 8, 3.
The element is in period 3 and group 3.
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