Question

If the atomic number of an element remains the same but the number of neutrons has been increased, which factor has been changed in that element?


the number of electrons

the chemical symbol

the number of protons

the mass number

Answer 1

mass number= proton number(atomic number)+neutron number

Answer 2

@Shonengetsu do you get this?

Answer 3

also keep in mind,
elements with the same proton number and different neutron number are called isotopes.
another definition would be,
elements with the same atomic number and different mass number are isotopes.

Answer 4

Ohh, okay. Thank you so much.