Which best describes the difference between internal and thermal energy? Internal energy is the total potential energy in a substance, and thermal energy is the total kinetic energy in a
substance.
O Thermal energy is the total potential energy in a substance, and internal energy is the total kinetic energy in a
substance
O Internal energy is the total potential and kinetic energies in a substance, and thermal energy is the part of internal
energy that can be transferred to another substance.
O Thermal energy is the total potential and kinetic energies in a substance, and internal energy is the part of
internal energy that can be transferred to another substance.

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.  

the answer is 1 i believe

idk what is it? is this a question that you know the answer or u dont