CAN SOMEBODY HELP ME WITH MY CHEMISTRY HW I TRULY DON’T UNDERSTAND :( ILL GIVE 80 POINTS IF YOU HELP ME WITH QUESTIONS 1-8

Answer:
number 3 is The proton is the subatomic particle that identify an atom's particular element. This particle is related to the atom's atomic number because its number is what determines the element's place on the periodic table.
Explanation: