Question

which statement is true about all the atoms of a given element? a they can have a different number of protons. b they are the same size as the atoms of all other elements. c they all have the same number of protons. d they have the same number of neutrons.

Explanation:

The atomic number, which is determined by the number of protons, defines an element. All atoms of a given element have the same atomic number, so they have the same number of protons. Atoms of different elements have different sizes, and atoms of the same element (isotopes) can have different numbers of neutrons.

Answer:

C. They all have the same number of protons.