Question

Explain why the elements of the same group exhibit the same chemical behaviour

Answer 1

I think because all the elements in a group have same outermost shell electronic configuration....

Answer 2

Answer:

$\huge \fbox \red{✯AɴSᴡᴇR✯}$

Elements in the same group (in the periodic table) have similar chemical properties. This is because their atoms have the same number of electrons in the highest occupied energy level. ... Group 0 elements are unreactive non-metals called the noble gases.