(a(i))[1]
occurs in purified bauxite
(a(ii))[1]
is made up of atoms with a complete outer shell of electrons
(a(iii))[1]
is used to destroy microbes during water treatment
(a(iv))[1]
forms an oxide that is amphoteric
(a(v))[1]
forms an oxide that leads to acid rain
(a(vi))[1]
has oxidation number -1 when combined with hydrogen.
(b(i))[1]
State the isotope against which all relative masses are compared.
(b(ii))[2]
Calculate the relative atomic mass of magnesium, giving your answer to one decimal place.
(c(i))[1]
State the nucleon number of the ion.
(c(ii))[1]
State the element that makes this ion.