The elements that belong to the third period of... - JAMB Chemistry 2015 Question
The elements that belong to the third period of periodic table are
A
Li, Be, Al and D
B
Na, P, O and Cl
C
B, C, N, and O
D
N2, Mg, S and Ar
correct option: d
Na, Mg, s and Ar one elements that belong to third period of the periodic table. Option A,B,C belong to the other period in the periodic table, second period
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