MCQ
The element with atomic number $55$ belongs to
- ✓$s$-block
- B$p$-block
- C$d$-block
- D$f$-block
✓
Answer
Correct option: A.
$s$-block
a
Atomic number $55$ belong to $s$-block and the element is caesium.
Atomic number $55$ belong to $s$-block and the element is caesium.
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