What is periodic motion ?

All oscillatory motions are necessarily periodic motions but

What is circular motion ?

What is the periodic trend in the variation of valency while going from left to right within a period.Explain the answer with reference to period 2 and period 3.

Answer the following questions: What is inertia of motion?

What is the periodic trend observed in the variation of atomic radius while going from left to right within a period?

What is the periodic trend observed in the variation of atomic radii down a group?

Answer the following questions : What is the periodic time of AC in India ?

What is the periodic trend in the variation of valency while going down a goup?Explain the

Define the following terms periodic motion

Explain the term 'periodic motion'.