Question

An atom is determined to contain 13 protons 10 electrons and 12 neutrons what are the mass number and charge of this atom or ion
Mass number 24 charge +2
Mass number 22 charge neutral
Mass number 34 charge -2
Mass number 34 charge +2

Answer 1

The mass number and charge of this atom or ion is 24  and charge +2

What is mass number ?

The mass number is equals to the total number of protons and neutrons in a nucleus.

In the give question, The number of neutrons is a distractor.

Only the number of electrons versus the number of protons determines ionic charge. The charge of the ion is +2

Hence, The mass number and charge of this atom or ion is 24  and charge +2

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