Question

Question No: 52
Which of the given elements A, B,
C, D and E
with atomic number 2, 3, 7, 10 and
30
respectively belong to the same
period?
O A, B, C С
B, C, D
O A, D, E
OB, D, E​

Answer 1

Explanation:

B,C,D

B=Lithium

C=Nitrogen

D=neon

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