a specific, quantized amount of energy that an electron can have within an atom or molecule; discrete levels are where electrons can exist
What is an Energy Level
what element? [He] 2s2 2p2
Carbon
1s2 2s2 2p6 3s1
Sodium
The longest wavelengths are seen as which color on the visible light spectrum?
Red
Which atom is bigger- Na or Mg?
Na
How many electrons can the d orbitals/sublevel hold?
10
What rule is this? Electrons occupy the orbitals of the lowest energy levels first
Aufbau
The shortest wavelengths are seen as which color on the visible spectrum?
Violet
which element has the highest ionization energy? Ge, Se, Cu, Br, Co
Br
What is the least energetic orbital?
s
What rule? Each atomic orbital can "hold" 2 electrons and in order to occupy the same orbital they must have different quantum numbers/spins
Pauli Exclusion Principle
1s2 2s2 2p6 3s2 3p6 4s1
K
What is the relationship between energy and wavelength?
as wavelength increases, energy decreases, and as wavelength decreases, energy increases. Inverse
Which element has the largest atomic size- He, F, Ar, or Na?
Na
How many orbitals make up the p orbitals/sublevel?
3
What rule? when electrons are assigned to equal orbitals, one electron goes in each orbital before being paired.
Hund's Rule
[Ar] 3d10 4s2 4p6
What is Krypton(Kr)
What terms are used to describe "a", "b", and "d"?

a is crest, b is trough, d is wavelength
Two elements belong to the same period. A is an alkali metal and B is an alkali-earth metal. Which has bigger radius?
A
Sulfur's valance electrons will be in what orbital? Be specific!
3p
What element? 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4p14 5d10 6p2
Pb
1s2 2s2 2p6 3s2 3p6 4s2 3d10
Zn
What is emitted as an electron drops back to its ground state?
A photon
Highest ionization energy: Bismuth, Antimony, Phosphorus
P