(a)[2]
Complete Table 1.1 to show the relative mass and relative charge of a proton, a neutron and an electron.
(b(i))[2]
Define the term isotopes.
(b(ii))[1]
Explain why all isotopes of the same element have the same chemical properties.
(c)[5]
Complete Table 1.2.
(d)[1]
State the name of one more term that is defined as the total count of protons and neutrons in the nucleus of an atom.
(e)[2]
Calculate how many atoms are present in 2.00 g of argon. Give your answer in standard form.