Which changes will decrease the electric force between two positively charged objects? check all that apply.

moving them closer together

moving them farther apart

adding electrons

removing electrons

adding neutrons

removing neutrons

Answer : Option B) Moving them farther apart.

Explanation : Force (F) is inversely proportional to distance (D) separated by charges.

When Electrostatic force is found to be inversely proportional between two positive charges which is separated by a distance D, then to decrease the electrostatic force of one can try to change the distance between the two positive charges in such a way that it increases the distance and decreased the electric force. The best option would be to move the them far apart from each other.

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.