The first member of group usually differ in properties fromrest of members of group?Why?

The first member of the homologous series of alkynes.

Name first element of Group 16 to 18

Explain the properties of Group 16 elements Allotropy

The first true coleomate group of animals is

The first member of actinoid series is____________.

A functional group mainly determines the _______properties

The first member of the group -2- elements exhibits diagonal relationship with ___ of the modern periodic table .

Give trend in reducing property of hydride of Group 16

How mammals differ from other groups of animals?

Use your brain power! Can you tell : Write down structural formulae of the first four members of the various homologous series formed by making use of the functional groups.