The atomic number of sodium is 11. Then the number of electrons in sodium ion is _________ . - IQ786

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The atomic number of sodium is 11. Then the number of electrons in sodium ion is _________ .

The atomic number of sodium is 11. Then the number of electrons in sodium ion is _________ .

10

12

13

14

Explanation

The atomic number of sodium is 11. It has 11 electrons. It loses one electron to form sodium ion.
$N a \to N a^{+} + e^{-}$
Then the number of electrons in sodium ion is $11 - 1 = 10$ .