All atoms of an element have the same number of

Question

Quizplus · Accepted Answer

All atoms of an element have the same number of protons, which is defined as the atomic number of that element. This is what gives the element its unique identity and distinguishes it from other elements. The number of electrons and neutrons can vary between isotopes of the same element, but the number of protons remains constant. The answer choices of ions and protons and neutrons are not correct, as ions can have a different number of electrons than protons, and isotopes can have different numbers of neutrons.

All Atoms of an Element Have the Same Number of