Answer :
Electrons and positrons have a relative mass of 0
Hydrogen-2 (Or deuterium) is made up of a proton, a neutron, and an electron
So the answer is (3) proton and neutron
Hydrogen-2 (Or deuterium) is made up of a proton, a neutron, and an electron
So the answer is (3) proton and neutron
Answer;
(3) proton and neutron
Explanation;
-Protons and neutrons are the two particles of an atom that make up the most mass of an atom. Almost all of the mass in an atom is made up from the protons and neutrons in the nucleus with a very small contribution from the orbiting electrons.
-Neutrons have no charge and protons are positively charged, thus the nucleus is positively charged since it is only made up of protons and neutrons.
