Which of the following group of elements belong to the representative group ?
The Groups or Families can be further categorized into the Representative Elements and the Transition Metals. The Representative Elements are those elements within the first two families (Groups I and II on the far left) and the last six families or groups (on the right) of the Periodic Table.
Thus Na,K, and Be are the representative elements as they belong to group 1 and 2 respectively.