How many electrons does cl- have?
Chlorine is a non metal element. There are 18 electrons in a single atom of the ion Cl- since it has gained an electron.
LOLOLOLOLOLOLOLOLOLOL FAIL KIDS ARE FAIL what this stupid answer actually means, is that Si has 4 valence electrons Cl has 7 valence electrons = 32 valence electrons in total ....... Cl ....... l Cl - Si - Cl ...... l ...... Cl The bonds take up 8 electrons so 32-8= 24 electrons left. Add 6 electrons around each chlorine (6 x 4) and there are no electrons left.
In an atom of Cl, there are 7 valence electrons. If you look at a Chemistry Reference table (2002 edition) pages 8 and 9, (visit the link below), you can see that underneath Cl there are the numbers 2-8-7. The last number is the number of valence electrons. This is found for any element on the Period table.