MCQ
If an atom has electronic configuration $1s^22s^22p^63s^23p^63d^34s^2$, it will be placed in :-
- ASecond group
- BThird group
- ✓Fifth group
- DSixth group
✓
Answer
Correct option: C.
Fifth group
c
The outermost shell and one shell prior to it in d subshell, has total 5 electron so it will be placed in fifth group in transition element or 'd' block of periodic table.
The outermost shell and one shell prior to it in d subshell, has total 5 electron so it will be placed in fifth group in transition element or 'd' block of periodic table.
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