How do the size of ions compare to the size of the atoms from which they form? a
Ions generally are smaller than the atoms that formed them.
b
Cations generally are smaller than the atoms that formed them, while anions generally are larger.
c
Ions generally are larger than the atoms that formed them.
d
Cations generally are larger than the atoms that formed them, while anions generally are smaller.

idk i’m struggling too

explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

            and  

since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be and .  

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.  

i don,t know so just answer mine