periodic table part-3

In which part of the periodic table are the metals, nonmetals and metalloids located ?

(a) What is the main characteristic of the last elements in the periodic of the periodic table? What is the general name of such elements? (b) What is he number of elements in : (a) 1st period, and (b) 3rd period, of the modern periodic table?

The member of periods and group in the long form of periodic table are

The period number of a long form of periodic table represents:

The number of period that the modern periodic table has :