Question

The number of protons in one atom of an element determines the atom's ____________, and the number of electrons determines ____________ of an element.

Answer 1

Both the number of protons and the number of electrons of an atom determine

its atomic number, as in an atom ( but not in an ion ).

Answer 2

The number of protons in one atom of an element determines the atom's electrons and the number of electrons determines the velency of an element