Question

What does the identity of an element depend on the number of? protons in the atom protons in the atom, protons and neutrons in the nucleus protons and neutrons in the nucleus, electrons in the atom electrons in the atom, neutrons in the atom

Answer 1

Answer: protons in the atom

Explanation: i took the test

Answer 2

The mass number of an atom is the sum of the protons and neutrons in the atom.

Step-by-step explanation:

An element's atomic number is equal to the number of protons in the nuclei of any of its atoms. The mass number of an atom is the sum of the protons and neutrons in the atom. Isotopes are atoms of the same element (same number of protons) that have different numbers of neutrons in their atomic nuclei.