Question #17fa2

1 Answer
Dec 2, 2015

Answer:

#2#

Explanation:

As you know, #"H"_2# is a molecule formed when two hydrogen atoms form a covalent bond.

In order to get the number of valence electrons for a molecule, you need to take into account the number of valence electrons each atom that's a part of that molecule brings to the table.

So, the hydrogen molecule is comprised of two hydrogen atoms. A neutral hydrogen atom has one proton and one electron.

http://www.mysearch.org.uk/website1/html/211.Bohr.html

This solitary electron will serve as hydrogen's valence electron. If each hydrogen atom brings one valence electron to the molecule, the you can say that the hydrogen molecule, #"H"_2#, has two valence electrons.

chemwiki.ucdavis.edu/Wikitexts/United_Arab_Emirates_University/UAEU_CHEM_111