a. Br does follow 2N^2
b. There aren't enough electrons to fill it with more than 7.
The first shell is full with 2, the second with 8 and the third with 18. That used up 28 and you have only 7 more electrons (35-28 = 7) so you place 7 electrons in the 4th shell. You don't have any more electrons to add to make it go to 32.
Why is Potassium and Bromide KBr?
Why does Br not follow 2n2?
Br = 35 electrons, 2,8,18,7 why does the shell not fill to 32 and is happy with one of Potassium electrons.
Thank you kindly.
1 answer
1 answer