How does the valency vary in going down a group?

How does energy stored in a inductor?

What is electronegativity of an element? How does electromegativity vary in a period and in a group in the periodic table?

Discuss how electron affinity of elements changes along a period and down a group.

In the periodic table going down in fluorine group

How does the value of rate constant vary with reactant concentration?

How does the atomic radius change as you go from left to right in a period?

How does the mesocarp of mango differ from that of coconut, though they both are drupes?