11 electrons makes the third energy level complete. One
There are 7 electrons on the valence shell. Chlorine requires one electron to make it complete and the ion would therefore be Cl- (one minus charge)
I think that because chlorine has 17 electrons in all, and ten of them are filled up on the first two shells, then seven of them should be on the third shell, so seven of them are valance electrons.
How many Chlorine (Cl) atoms there are. Since Cu has a valence shell of 2, it needs to bond with 2 Chlorine ions in order to create complete valence shells for the molecule.
The element chlorine has seven electrons in its valence shell.
11 electrons makes the third energy level complete. One
Chlorine has 7 valence electrons in the 3rd electron shell. Chlroine is in the third row of the periodic chart, so its 3rd shell is the valence shell, and it is in the next to last column, 7A, so it has 7 electrons in that 3rd shell.
The valence shell is the outermost shell...and an atom can only have one outer shell.
It needs only 1 more electron since it already has 7 valence electrons.
Chlorine needs one additional valence electron to have a full valence shell, as it has seven valence electrons in its outermost shell and aims to have a complete octet with eight electrons for stability.
Chlorine has 7 electrons in the outermost shell. It is in the 17th group. It has 7 valence electrons.
The value of 'n' for the valence shells is the number of shells that specific atom has
1 additional electron will give chlorine 8 in the valence. You can see in the Periodic table, that Chlorine is next to Argon ( 1 to the left of it) so it needs 1 more electron to have the same configuration as Argon.