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Atomic Number

Which of the ...

Question

Which of the following pairs has elements with same number of neutrons?

A

Ne and Na

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B

Al and Si

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C

C and F

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D

Mg and S

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Solution

The correct option is B Al and Si
$A l$ and $S i$ both have 14 neutrons.
$N e$ (10) and $N a$ (12)
$C$ (6) and $F$ (10)
$M g$ and $S$
12 16

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