Use a Periodic Table to help you answer this question.
Give the symbol of the element that has an atomic number of 15.
Give the symbol of the element that has a relative atomic mass of 14.
Give the number of the group that contains the alkali metals.
Identify the group whose atoms form ions with a charge of +1+1+1.
Identify the group whose atoms form ions with a charge of −1-1−1.
