The atomic number of elements P, Q, R, S and T are given. Which two elements are chemically similar?

The atomic number of elements P, Q, R, S and T are given. Which is an inert gas?

The atomic number of elements P, Q, R, S and T are given. Which element among these is a non metal?

The atomic number of elements P, Q, R, S and T are given. Which element belongs to 3rd period of periodic table?

Which element is chemically most stable?

The atomic number of an element corresponds to :

11, 12, 13 and 14 are the atomic numbers of the elements Na, Mg, Al and Si respectively. Which element have more atomic radius ?

The atomic number of an element is 58. it blongs to

An atom has electronic configuration 2, 8, 7. (a) What is the atomic number of this element ? (b) To which of the following elements would it be chemically simlar ? (Atomic numbers are given in parentheses.) N(7) F(9) P(15) Ar(18)

The atomic number (Z) of an element is 6. name the element.

Which elements are called p-block elements ?