Periodic Proper...

What is the collective name given to the elements of group 1, 2, 13, 14, 15, 16 , 17 and 18?

Which of the following elements do not belong to the same group, but show chemical similarities?

Which of the following elements is not correctly matched with its family?

Which of the following isoelectronic ions has the lowest ionisation energy?

Which of the following processes requires the highest energy?

Which of the following will have the highest second ionisation energy from the ground state of electronic configuration of various electrons?

The ionisation energy of the element is the measure of

Which of the following processes refers to IE₂?

On moving down the group, the ionisation energy decreases because of

Which of the following configurations indicates fourth transition metal?

Which of the following has the highest ionisation energy?

In which of the following pairs is the ionisation energy of first species less than that of second?

Arrange S, P and As in order of increasing ionisation energy.

What is the correct order of the size of the given species?

Which of the following is the correct order of increasing ionic radii?

The electronic configuration of elements of group 18 is represented by :

General configuration of elements of transition metals belonging to d block is

In transition elements, the incoming electron occupies (1-n)d subshell in preference to

Which of the following configurations represents the most electropositive element?

What information about the chemical nature of the element is given by the configuration 1s² 2s² 2p⁶ 3s²?

Which of the following ions does not have the configuration of argon?

The general electronic configuration of transition elements is

The anion O^2- is isoelectronic with

Among the following which one is not isoelectric with the other species?

In which of the following binary compounds the ration r _cation / r _anion is the least?

While moving from F to I, which of the following trends is observed?