Predict the position of element having atomic number 72 (Period number and group number)

Predict the period of the element with atomic number 51

Predict the position of an element with atomic number 55 in the periodic table and explain the chemical behaviour of tha element.

Position of element, having atomic number 25, in the modern periodic table.

Find the position of element with atomic number 35 in the periodic table

Find the position of element with atomic number 35 in the periodic table

What is the group of the element having atomic number 34?

The element having atomic number 33 lies in the group

What is the group of the element having atomic number 34?

In modern periodic table let, a=Group number of a hypothetical element having atomic number 120 ,b=Period number of the element Pd,c= Atomic number of last element of lanthanide series, Find (a+b+c)

Write down the characteristics of the elements having atomic number 17. Group number………..