Question

find out the number of protons electrons in the Ar​

Answer 1

Answer:Since, the atomic number of Ar is 18, it contains 18 electrons.

No. of electrons = No. of protons

Hence, no. of protons = 18

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Answer 2

Answer:

The number of protons in the nucleus of the atom is equal to the atomic number (Z). The number ofelectrons in a neutral atom is equal to the number ofprotons. The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus.