There are 3 shells. The first containing 2 electrons then the second containing 8 electrons and the third(the valence shell) containing 7. In total it has 17 electrons. This should help:
the dot diagram for cl is two dots on top
cl with 15 dots
Chlorine has 7 valence electrons.
2.8.7
Cl2 is the diatomic molecule of chlorine (Cl) . It has 14 valence electrons, 7 in each atom. When chlorine forms a chloride ion, an atom accepts an electron and becomes Cl- (negative ion).
. . : Ar : . . Write Ar, the symbol for argon and then write four electron pairs (or eight electrons) around the symbol.
The answer is 12. If you draw the lewis dot structure for formaldehyde, you have to remember to draw the non-bonding pairs on the oxygen atom, and when you count all the electrons, remember that the lines used to represent bonds are counted as 2.
Cl
The electron dot, or Lewis dot diagram for xenon is the symbol Xe surrounded by four pairs of dots, representing eight valence electrons. Refer to the related link for an illustration.
.. :Cl...
Lewis structure, electron dot diagram, electron dot structure...
Cl....
H-Cl| or H:Cl:::
what is the dot diagram for Ce
The electron-dot structure of sodium atom is 'Na-dot' or 'Na.' One dot is one valence electron.
.. .. :O- Cl : | .. :Cl : ..
: :Cl: : : : :Cl:Si:Cl: : : : H
: :Cl: '
Cl--Cl with three lone pairs around each
electorn dot symbol
The electron-dot structure for HBr would be:H:Br: (with two more pairs of dots on the top and bottom of Br)