In 1909, ernest rutherford shot tiny particles at a sheet of gold foil. he expected all of the particles to move straight through the gold's atoms. instead, some of the particles moved through, but other particles bounced back. what conclusion did rutherford draw from these results?

a. an atom is a soft blob of material composed of a mixture of protons and electrons.

b. an atom is entirely solid and has no empty spaces between its particles.

c. an atom has a dense nucleus surrounded by mostly empty space where electrons travel.

its going to be mutualism cuz they both benefit from the relationship.

~batmans wife dun dun

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.