The nucleus of an atom is
a. the central core and is composed of pro-tons and neutrons
b. positively charged and has more protons than neutrons
c. negatively charged and has a high density
d. negatively charged and has a low density

the central core and is composed of protons and neutrons

neucleus has exact number of positivly charged protons and equal or more neucleus

because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates

i believe the answer is true.