i bust the windows out your car, and no it didn't mend my broken heart. i'll probably always have these ugly scars, but right now i don't care about that part. yeah, i bust the windows out your car, after i saw you laying next to her, i didn't want to but i took my turn. but im glad i did cause you had to learn. although i must admit it helped a little bit.

Explanation:

A noice

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.