Electronic Configuration Flashcards
How many energy levels do u have to know about?
Up to 4
How many electrons can the 1st energy level hold?
2
How many can the 2nd energy level hold?
8
How many can the 3rd energy level hold?
18
How many can the 4th energy level hold?
24
What are the 4 sublevels
S,P,D and F
How many electrons can an s orbital hold?
2
How many electrons can a P subshell hold?
6
How many electrons can a D subshell hold?
10
How many electrons can a F subshell hold?
14
What order do you write the electronic configuration in?
In order of shells NOT filling
Define orbital
The region of space around the nucleus that can hold up to 2 electrons with opposite spins
What sub shell comes out of order?
The 4s subshell fills before the 3d sub shell (same with 5s & 4d)
Why does 4s fill before 3d?
Because it has a lower energy level
What 2 elements are the exception for the way of filling?
Chromium and copper