10 questions
Which of the following is NOT a possible pair of quantum numbers?
2p
2d
4p
4f
What does the 1 in "1s" stand for?
energy level
s orbitals
p orbitals
the number of electrons
What element has the electron configuration 1s2 2s2 2p6 3s2 3p5?
Chlorine
Argon
Fluorine
Sulfur
Bromine
How many electrons are in 1s2 2s2 2p4?
5
6
8
13
What is the noble gas configuration for Cobalt?
[Kr] 4s2 3d7
[Kr] 4s2 4d7
[Ar] 4s2 3d7
[Ar] 4s2 4d7
What is the noble gas configuration for 1s2 2s2 2p6 3s2?
[He] 3s2
[Ne] 3s2
[Ar] 3s2
[Ar] 4s2