How would you explain this and how does it work?
size depends on the priciple quantum number, n .
but when I do the electron configurations, I get different letters and numbers
like Cr: 4s^13d^10
2007-09-25 15:52:48 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
The full electron configuration for Cr is
1s2 2s2 2p6 3s2 3p6 4s2 3d4
The principal quantum number is the highest level appearing in the electron configuration, in this case 4 (from the 4s2 part) - even though at this stage we are filling the 3rd level, the 4th level is the outermost one and determines the size.
2007-09-25 15:59:05 · answer #1 · answered by Scarlet Manuka 7 · 0⤊ 0⤋
I have no idea how you got that. lol.
It seems you have problems with overlap(once you sigure it out it all becomes clearz!
The best way to remember it is by useing this diagram
1s2 ' 2s2 ' 3s2 ' 3d10 ' 4d10 ' 4f14 ' 5f14
' 2p6 ' 3p6 ' 4p6 ' 5p6 ' 5d10 ' 6d10
' 4s2 ' 5s2 ' 6s2 ' 6p6 ' 7p6
' 7s2 ' 8s2
once you learn the groups and where the s,p,d,f blocks are located it becomes clear(er)
2007-09-25 23:07:39 · answer #2 · answered by zim_70094 2 · 0⤊ 0⤋