How many electrons does boron have?

2 Answers
Oct 13, 2016

Boron atomic number 5 has five electrons in its ground state.
Commonly Boron will lose 3 electrons leaving 2 electrons in its most common ionic form.


The atomic number gives the number of protons. Protons which have a positive charge are balanced by an equal number of electrons in a neutral atom.

Boron number 5 has five protons and therefore as a neutral atom also has five electrons.

Boron has an electron configuration of # 1s^2 2s^2 2p^1 #

The most stable electron configuration for Boron is

# 1s^2# + 3 charge. By losing three electrons Boron can achieve the stable electron structure of Helium

Nov 3, 2016

Boron has five electrons.


Boron is element number 5 in the Periodic Table.

That means it contains five protons and five electrons.

They are arranged with two electrons in the first energy shell and three in the second.

A chemist would say that the electron configuration of boron is

#"1s"^2 "2s"^2 "2p"#