An atom has a mass number of $23$ and the atomic number is $11$ . The atom has ______ electrons.

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Solution

Atomic number:
The amount of protons in an element determines its atomic number.
It is used to distinguish one element from another.
It is represented by the letter “Z”.
Also, for a neutral atom the number of protons is equal to the number of electrons.
And the mass number is defined as the number of protons and electrons in an atom.
For the given element atomic number is $11$ which is equal to the number of protons or electrons present.
Therefore, the number of electrons present is $11$ .

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An atom has a mass number of 23 and the atomic number is 11. The atom has ______ electrons.

An atom has a mass number of $23$ and the atomic number is $11$ . The atom has ______ electrons.