Describe relative atomic mass, ( A_r ), as the average mass of the isotopes of an element compared to 1/12th of the mass of an atom of ( ^{12}C )
State the relative charges and relative masses of a proton, a neutron and an electron
Describe relative atomic mass, ( A_r ), as the average mass of the isotopes of an element compared to 1/12th of the mass of an atom of ( ^{12}C )
State the relative charges and relative masses of a proton, a neutron and an electron