MCQ
The correct order of increasing radius of the elements $Si, Al, Na$ and $P$ is
- A$Si < Al< P < Na$
- ✓$P < Si < Al < Na$
- C$Al < Si < P < Na$
- D$Al < P < Si < Na$
✓
Answer
Correct option: B.
$P < Si < Al < Na$
b
The elements $Na , Al , Si$, and $P$ are present in same period ($2^{nd}$ period). Atomic radius increases from left to right in a period. So, the order of atomic radius for the given elements will be $Na \,>\, Al\, >\, Si \,> \,P$.
The elements $Na , Al , Si$, and $P$ are present in same period ($2^{nd}$ period). Atomic radius increases from left to right in a period. So, the order of atomic radius for the given elements will be $Na \,>\, Al\, >\, Si \,> \,P$.
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