MCQ
The formula of oxide of an element $M$ having $IE_1 = 100\, kJ$, $IE_2 = 250\, kJ$ and $IE_3 = 1500\, kJ$ should be
- A$M_2O$
- B$MO_2$
- C$M_2O_3$
- ✓$MO$
✓
Answer
Correct option: D.
$MO$
d
Outer most shell $el^-= 2$, valency $= 2$
Outer most shell $el^-= 2$, valency $= 2$
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