Question

What is the electron configuration for Kr?

Answer 1

oh that's gotta be difficult
what is the atomic number of Kr?

Answer 2

36, I have the majority of the configuration I just can't understand why "d" is used as I thought it was only used for transitional metals

Answer 3

let me see your solution

Answer 4

\[1s ^{2}2s ^{2}2p ^{6}3s ^{2}3p ^{6}4s ^{2}3d ^{10}4p ^{6}\]

Answer 5

it is one of those adjustments that I am sure were discussed when the concept of electron configuration was being taught

Answer 6

and i was told d would only be used for transitional metals. could you explain why d is used on kr?

Answer 7

it is NOT ONLY used for transitional metals
I don't know where you got this from

Answer 8

read chapter 8
http://finedrafts.com/files/CUNY/chemistry/General/Ebbing%20etal%209th%20ed/Pt2%20Atomic%20Molecular%20Structure.pdf

Answer 9

from my professor, ill adjust my thinking now. thank you

Answer 10

this is the schematic diagram if it helps you more visually

Answer 11

that is helpful actually

Answer 12

maybe you just misheard your professor
this is why it is always good to read your book, and pay attention to the professor so whatever you didn't quite get from the book will be answered by the professor and if the professor misspoke, you can always point out that it is not what you read in the book

Answer 13

my textbook does a poor job of explaining the configuration of anything past 20, but I understand it now and the photo did explain it much better

Answer 14

remember that in any rule there are exceptions and electron configuration has some exceptions

Answer 15

you are right there. I will just have to continue practicing these until my eyes fall out of their sockets.

Answer 16

that is a good plan

Answer 17

thanks for the help