MCQ
The elements A, B, C, D and E have atomic number 9, 11, 17, 12 and 13 respectively. Which pair of elements belong to the same group?
- AA and B.
- BB and D.
- ✓A and C.
- DD and E.
✓
Answer
Correct option: C.
A and C.
Elements A(Z = 9) and C(Z = 17) belong to the same group. It is a halogen family (group 17).
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