How many valence electrons does #O# have?

1 Answer
Oct 30, 2016

Oxygen has six valence electrons, along with the other elements in group 16.


This means that it's outer energy level contains six valence electrons. To find valence electrons using the periodic table, look at the group/family (column) number. If it is in group 1 or 2, the group number is the number of valence electrons. If it is in group 13-16, subtract 10. If it is in the middle section (transition metals, Lanthanoids, or Actinoids), the rules are not so clear-cut. Luckily Oxygen (#O#) is in group 16, so it has 6 valence electrons.