Valence electrons lie in the outermost electron shell of an element. btw you can find it by using the the bohr model
then, we will proceed to the bohr model, the ground state around it the K,L,M,N,O,P,Q lets begin with the K it can only hold a maximum of 2 electrons, L can hold 8 ........ and bcoz our element oxygen has 8 electrons... the first orbital K holds the 2 electrons, then the remaining are 6..
then we'll proceed to the 2nd orbital bcoz then may 6 na natitira pang electrons so we will put it on the 2nd orbital and it can accommodate 8 electrons at dahil 6 nlng na electrons ang natitira so the valence electron of oxygen is 6...
any further questions? :)
Thank you very much. ^_^ I tried it already. I'm almost done with my assignments. Thank you very much. God bless you. ^_^
welcome ;)))