MCQ
In transition elements, the orbitals partially filled by electrons are
- A$s - $ orbitals
- B$p -$ orbitals
- C$d - $ orbitals
- ✓All of these
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$A.$ $Sm ^{2+}$ $B.$ $Ce ^{2+}$ $C.$ $Ce ^{4+}$ $D.$ $Tb ^{4+}$
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