What is the electronic configuration of the boron atom?

1 Answer
Aug 12, 2017

Answer:

You mean to refer to the atomic orbitals of boron.......

Explanation:

Boron, #Z=5#, has 3 electrons in its valence shell, i.e. its atomic configuration is #1s^(2)2s^(2)2p^(1)#. The #2s# and #2p# valence electrons are conceived to hybridize to give THREE #sp^2# hybrid orbitals, and to a first approximation boron forms 3 covalent bonds, i.e. to give #BH_3#, or #BX_3#, or #BR_3#.

Of course this is to a first approximation. Boron is known to undergo electron-deficient bonding, with #"3-centre, 2-electron bonds"# between boron and hydrogen featured.