MCQ
The elements indicating following atomic numbers belong to same group
- ✓$11$ and $37$
- B$19$ and $15$
- C$39$ and $88$
- DNone of these
✓
Answer
Correct option: A.
$11$ and $37$
a
Electronic configuration for elements with atomic number $11$ and $37$ are $[ Ne ] \,3 s ^1$ and $[ Kr ]\, 5 s ^1$ respectively. Both belongs to same group $($i.e. group $1 )$
Electronic configuration for elements with atomic number $11$ and $37$ are $[ Ne ] \,3 s ^1$ and $[ Kr ]\, 5 s ^1$ respectively. Both belongs to same group $($i.e. group $1 )$
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