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prodeepbiswas
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Asked: 2021-06-08T09:16:10+00:00 In:

Which of the given elements A, B, C, D and E with atomic number 2, 3, 7. 10 and 30 respectively belong to the some period ?

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Poll Results

0%(a) A, B, C
100%(b) B, C, D ( 2 voters )
0%(c) A,D, E
0%(d) B, D, E
Based On 2 Votes

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Class 10 Chemistry Question.
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    1 Answer

    1. (b) B, C, D

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