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What is the equation for the maximum number of electrons on a energy level?
2n²
How is emission spectra created?
Electrons gain energy and move to a higher energy level. The electron becomes unstable and emits a photon of a light as it falls back down.
What is “n” in terms of the emission spectra?
The principle quantum number
In which spectra is infrared light emitted?
∞ → n=3
In which spectra is visible light emitted?
∞ → n=2
In which spectra is UV light emitted?
∞ → n=1
As “n” gets smaller does the wavelength shorten or lengthen?
Shorten
As “n” gets smaller does the frequency get higher or lower?
Higher
How many orbitals are in the s subshell?
1
How many orbitals are in the p subshells?
3
How many orbitals are in the d subshell?
5
How many electrons are in the s subshell?
2
How many electrons are in the p subshell?
6
How many electrons are in the d subshell?
10
What is Aufbau’s principle?
Aufbau’s principle dictates the order which electrons fill energy orbitals “electrons arrange themselves to have the lowest energy possible”
What is Pauli’s exclusion?
Only 2 electrons can fill one orbital and must spin in opposite directions
What is Hund’s rule?
Electrons fill orbitals singly before forming pairs
Write the spdf notation for oxygen?
1s²2s²2p⁴ All the “top” numbers add up to the number or electrons.
What are the two exceptions from spdf notation?
Chromium and Copper
What is the electron configuration for chromium?
[Ar] 4s¹3d⁵
What is the electron configuration for copper?
{Ar] 4s¹3d¹⁰
Note 
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