Answer: The valence electron configuration for the boron atom is 2s2 2p1.
Explanation: Valence electrons are the electrons present in the outermost energy level (shell) of an atom.
Boron, with an atomic number of 5, has an electron configuration of 1s2 2s2 2p1.
In this configuration, the 2s2 and 2p1 subshells contain the valence electrons. Boron has 3 valence electrons in total.
Read Full Article: Electron Configuration for Boron (B, B3+ ion)
Significance: Boron’s 3 valence electrons contribute to its chemical behavior and its tendency to share or lose these electrons in chemical reactions.
This behavior allows boron to form various compounds and participate in bonding with other elements.