Question

which of the following statements is true about the atoms of any element?
a all the atoms of a given element are identical in that they have the same number of protons.
b they have the same number of protons as neutrons.
c they have the same size as the atoms of all other elements.
d all the atoms of a given element are not identical in that they have a different number of protons.

Explanation:

The atomic number of an element is defined by the number of protons in its atoms. All atoms of a given element have the same number of protons. Isotopes of an element have different numbers of neutrons. Atom - sizes vary between elements.

Answer:

A. All the atoms of a given element are identical in that they have the same number of protons.