MCQ
Which of the following elements will have the lowest first ionisation energy
- A$Mg$
- ✓$Rb$
- C$Li$
- D$Ca$
✓
Answer
Correct option: B.
$Rb$
b
(b) As it belongs to $IA$ group and has maximum size.
(b) As it belongs to $IA$ group and has maximum size.
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