Question

Why is it not possible to hybridize 1s and 2s orbitals

Answer 1

In sp² hybridization, one s orbital and two p orbitals hybridize to form three sp² orbitals, each consisting of 33% s character and 67% p character. This type of hybridization is required whenever an atom is surrounded by three groups of electrons

Answer 2

The filling of electrons and hybridization follows the rule of Aufbau's principle.

Aufbau's principle states that electrons are filled in the atomic orbitals of an atom in the ground state first.

Explanation:

• It is not possible to hybridize 1s and 2s orbitals because the filling of electrons follows Aufbau's principle.

• The order of s,p,d and f orbitals are filled with electrons.

• They are governed by energy levels.

• The lower energy levels is filled first and then followed by next orbital

• 1s < 2s < 2p < 3s < 3p< 3d < 4s< 4p and so on

• Hybridization takes place when an atom binds using electrons from both s and p orbitals.

• it creates an imbalance in the energy levels of electrons.

• In order to equalize these energy levels, the s and p orbitals get involved in combining the hybrid orbitals.