Given that the valence electrons were removed or added to the following elements to fulfill the octet, barium's charge would be +2
The octet rule generally refers to the tendency of atoms to prefer to have eight electrons in the valence shell. When atoms have lesser than eight electrons, they tend to react and form more stable compounds.
This certainly means that the atom's valence shell has a resemblance with a noble gas. The octet rule states that the atoms like to have eight electrons only in their full outer shells.
In case of barium the valence electronic configuration is [Xe] [tex]6s^{2}[/tex]. So here we can see that in order to reach the nobel gas configuration Barium needs to loose only 2 electrons and after that barium will attain Xenon configuration. Hence the charge on Barium would be 2+.
To know more about Octet rule.
https://brainly.com/question/10535983
#SPJ4
