MCQ
The atomic radius of elements of which of the following series would be nearly the same
- A$Na$,$K$,$Rb$,$Cs$
- B$Li$,$Be$,$B$,$C$
- ✓$Fe$,$Co$,$Ni$,$Cu$
- D$F$,$Cl$,$Br$,$I$
✓
Answer
Correct option: C.
$Fe$,$Co$,$Ni$,$Cu$
c
(c) $Fe,\,Co,\,Ni,\,Cu$.
(c) $Fe,\,Co,\,Ni,\,Cu$.
Due to shielding of $d-$electrons, the effect of increased nuclear charge due to increase in atomic no. neutralised.
Consequently atomic radius remains almost unchanged after chromium.
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