MCQ
Which element belongs to $ d -$ block
- A$Na$
- B$Ca$
- ✓$Cu$
- D$Ar$
✓
Answer
Correct option: C.
$Cu$
c
(c)$Cu;$ because last electron enters $d-$ orbital $(3{d^{10}}4{s^1})$.
(c)$Cu;$ because last electron enters $d-$ orbital $(3{d^{10}}4{s^1})$.
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