All atoms of the same element: have the same number of electrons
have the same number of protons
have the same number of atoms
have the same number of neutrons

have the same number of atoms

Explanation:

Atoms of the same element have the same atomic number so the number of protons (and electrons) are same. But they have same or different mass number (like that for isotopes) . Different mass number will have different number of neutrons.

yes

explanation:

search chemistry final b exam in google and a site called quizlet will pop up

i believe the answer is true.