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Introduction

State true or...

Question

State true or false.
If there are $10$ electrons and $8$ neutrons in $X^{2 -}$ , then its ionic mass is $18$ .

True

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False

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Solution

The correct option is B False
As, Ionic mass $=$ neutron + proton $=$ $8 + 8 = 16$ and number of protons $=$ number of electrons in neutral species.

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