MCQ
The set that contains atomic number of only transition element is -
- A$21,32,53,64$
- ✓$21,25,42,72$
- C$9,17,34,38$
- D$37,42,50,64$
✓
Answer
Correct option: B.
$21,25,42,72$
b
Tranition elements $=21$ to $30$
Tranition elements $=21$ to $30$
$37$ to $48$
$57$ $\&$ $72$ to $80$
Ans. $21,25,42\, \& 72$
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