What do elements in each group or family have in common?

Each column is a "group" or "Family" of elements. The elements as such do not have a particular name in common.

because they all have something in common, that is why they are in the same group in the periodic table which is also called a family :]

Elements is each group have the same number of valence electrons

chemical and physical properties. group 8 or 0 in the peroidic table of elements all have in common 8 outer electrons in their outer shell, making them the most unreactive elements.

Each column represents a "group" or "family" of elements. In general, all the elements in a group or family have the same number of valence electrons available in the outer shell of each atom.

they have the same # of valence electrons

all elements are listed in a verticle column but each column indicates a family such as group seven, the halogens, or a group of similar elements such as the oxygen family or nitrogen family.

Each and every element is used for something in live.

The elements is a group on the periodic table are considered a family because they have similar electron configurations and similar properties.

Electron configuration - they have the same number of elements in their outer 'electron shell'. This induces them to have similar bonding properties, and so elements in the same group are chemically similar.

On the periodic table, the family nitrogen belongs to is Group Vb. In their outer electronic shell, each of the elements within this group have five electrons.

Antimony and bismuth may be considered similar elements.

They have the same number of valence electrons and hence have similar chemical properties

Because they have many similar chemical properties.

The question is a bit ambiguous, but I will take it to mean 'what do the elements of a particular group have in common?' The answer is valence, or, in other words, the number of electrons in the outer shell.