I need help with homeworkk? (:?

Um. I can't give you the nuetrons because you didn't give me the mass.

The atomic number is the number of protons and electrons.

Example - Hydrogen Atomic number, 1

Electrons - 1

Protons - 1

To find the number of nuetrons you would round the atomic mass to the nearest whole number. &B subtract it from the atomic number

Hope I helpedd xD

Im me if you need more help tiyanacheyenne@yahoo.com xD

You should do these yourself. I'll tell you how.

The number of protons and electrons is the same as the atomic number. The number of neutrons is the atomic mass minus the atomic number.

As for the abundance of isotopes, the only way I know of is to google it.