Hybridization: AP Chemistry Definition

Alexandra Brennan

Written by: Alexandra Brennan

Reviewed by: Philippa Platt

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What is hybridization?

Hybridisation in chemistry refers to the concept of mixing atomic orbitals to create new hybrid orbitals, which are used to describe the bonding properties of atoms in molecules. This process allows for the formation of orbitals with suitable directional characteristics to form chemical bonds.

For instance, when carbon forms four covalent bonds, its 2s and three 2p orbitals hybridise to create four equivalent sp³ hybrid orbitals, oriented in a tetrahedral geometry. This model helps explain molecular shapes and bond angles in complex molecules, playing a crucial role in understanding molecular structure and reactivity, a fundamental aspect studied in the AP® Chemistry course.

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Alexandra Brennan

Author: Alexandra Brennan

Expertise: Chemistry

Alex studied Biochemistry at Newcastle University before embarking upon a career in teaching. With nearly 10 years of teaching experience, Alex has had several roles including Chemistry/Science Teacher, Head of Science and Examiner for AQA and Edexcel. Alex’s passion for creating engaging content that enables students to succeed in exams drove her to pursue a career outside of the classroom at SME.

Philippa Platt

Author: Philippa Platt

Expertise: Chemistry

Philippa has worked as a GCSE and A level chemistry teacher and tutor for over thirteen years. She studied chemistry and sport science at Loughborough University graduating in 2007 having also completed her PGCE in science. Throughout her time as a teacher she was incharge of a boarding house for five years and coached many teams in a variety of sports. When not producing resources with the chemistry team, Philippa enjoys being active outside with her young family and is a very keen gardener

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