Na^{+} has completely filled K and L shells. Explain.

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4. STRUCTURE OF THE ATOM

easy

$Na^{+}$ has completely filled $K$ and $L$ shells. Explain.

Option A

Option B

Option C

Option D

Solution

The atomic number of sodium is $11 .$ So, neutral sodium atom has $11$ electrons and its electronic configuration is $2$, $8$, $1$ . But $Na ^{+}$ has $10$ electrons. Out of $10$, $K-$ shell contains $2$ and $L-$ shell $8$ electrons respectively. Thus, $Na ^{+}$ has completely filled $K$ and $L$ shells.

Standard 9

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medium

$Na^{+}$ has completely filled $K$ and $L$ shells. Explain.

Solution

Similar Questions

The average atomic mass of a sample of an element $X$ is $16.2\,u $. What are the percentages of isotopes $_8^{16}X$ and $_8^{18}X$ in the sample ?

find out the mass number of oxygen and sulphur atom.

For the symbol $H$, $D$ and $T $ tabulate three sub-atomic particles found in each of them.

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