What do you mean by representative elements?
Give an example.

What do you mean by representative elements? Name the groups of the periodic table, which contain representative elements.

What do you mean by representative elements? Name the groups of the periodic table, which contain representative elements.

What do you mean by representative elements? Name the groups of the periodic table, which contain representative elements.

What do you mean by representative elements? Name the groups of the periodic table, which contain representative elements.

What do you mean by thermosetting polymers ? Give one example.

What do you mean by metameric segmentation? Give one example.

What do you mean by stoichiometric defects? Give an example of vacancy defects.

What do you mean by relative motion ? Give an example.

What do you mean by parthenogenesis ? Give an example of it .

What do you mean by parasitic castration ? Give one example.