prodeepbiswas
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Poll

The elements in groups 1 and 17 in the third period are

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Poll Results

0%(a) Na and F respectively.
0%(b) K and F respectively.
100%(c) Na and CI respectively. ( 1 voter )
0%(d) K and CI respectively.
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CBSE 2022-2023.
Class 10 Chemistry Question.
Important Questions of Ch:5 Class10th NCERT.
Important MCQ of Science Class 10th.
NCERT SCIENCE.
CBSE Board state and other board.
NCERT book extra.

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