Problem 37

Given information

We are given that jumps occurs only for successive Ionisation energies for example,  the jump occur between the first and second ionization energies, the second and third, or the third and fourth.

Step-by-step explanation

A jump in ionization energy occurs when a core electron is removed. A large jump in the ionization energy easily is seen from the electronic configuration of an element.

The electrons are filled in orbitals on the basis of three rules. Auf Bau's principle states that each electron occupies the lowest energy orbital. The Pauli Exclusion Principle states that only two electrons can fit into a single orbital. Hund’s rule states that the electrons go into different orbitals in the same sub-level before doubling up inside orbitals”.

For Beryllium, the electronic configuration of is .

There are two valence electrons in the outermost shell hence the ionization energy data for beryllium will show a sudden jump or increase in going from the second to the third ionization energy owing to the removal of a core electron