Boron

Properties of boron atoms

Ionisation Energies and electron affinity

The electron affinity of boron is 26.7  kJ mol^-1. The ionisation energies of boron are given below.

Electronic configuration

The following represents the electronic configuration and its associated term symbol for the ground state neutral gaseous atom. The configuration associated with boron in its compounds is not necessarily the same.

• Ground state electron configuration:  [He].2s².2p¹
• Shell structure:  2.3
• Term symbol:   ²P_1/2

A schematic representation of the shell structure of boron - not what the atom of boron "looks like".

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