QuestionWhich statement is NOT true about atoms? 1) Mostly empty space, 2) Same element has different masses, 3) Nucleus is positive, 4) Isotopes have different protons.

Studdy Solution
Finally, let's analyze the fourth statement "Atoms of isotopes of an element have different numbers of protons."
This statement is NOT true. Isotopes of an element have the same number of protons, but different numbers of neutrons. This is the definition of isotopes. The number of protons in an atom determines the element it is, so if the number of protons were to change, it would no longer be the same element.