This is the smallest packet of electromagnetic energy.
What is a photon?
Green light has a wavelength of 510 nm. Convert this to meters.
What is 5.1 × 10⁻⁷ m?
What is the Bohr Model for Carbon?

This rule states that electrons fill the lowest energy orbitals first.
What is the Aufbau Principle?
This shows how electrons are distributed among orbitals.
What is electron configuration?
Chlorine has this many valence electrons.
What is 7?
Light always travels at this speed in a vacuum.
What is 3.00 × 10⁸ m/s?
This equation relates wavelength, frequency, and the speed of light.
What is c = λν?
When an electron falls from a higher energy level to a lower one, this happens.
What is a photon is emitted?
This rule states that each orbital can hold a maximum of two electrons with opposite spins.
What is the Pauli Exclusion Principle?
This element has the configuration 1s²2s²2p⁶3s²3p⁵.
What is chlorine?
This is the maximum number of s orbitals possible in an energy level.
What is 1?
As wavelength decreases, this property of light increases.
What is frequency?
In electromagnetic waves, wavelength increases when this decreases.
What is frequency?
The statement that electrons follow exact circular paths is associated with this earlier model.
What is the Bohr model?
This element has the orbital notation:
1s ↑↓ 2s ↑↓ 2p ↑ ↑ ↑
What is nitrogen?
Any p sublevel can hold this many electrons.
What is 6 electrons?
This number determines the identity of an element and equals the number of protons in the nucleus.
What is the atomic number?
Electromagnetic radiation travels through space in this form.
What are waves?
Blue light from a mercury lamp has a frequency of 6.88 × 10¹⁴ Hz. This is its approximate wavelength.
What is 4.36×10−7 m?
When an electron absorbs energy, it moves from this type of level to this type.
What is lower to higher energy level?
This rule states that electrons fill empty orbitals before pairing up.
What is Hund’s Rule?
Sulfur’s abbreviated electron configuration is this.
What is [Ne]3s²3p⁴?
In the quantum mechanical model, electrons behave as both these two things.
What are particles and waves?
A light wave has a wavelength of 4.5 × 10⁻⁷ m... calculate the frequency.
6.7 × 10¹⁴ Hz?
Electron going ____ levels → absorbs energy
Electron going ____ levels → emits light
What is up, down?
This element is the first to start filling the 3p orbitals.
What is aluminum?
This is the abbreviated electron configuration for calcium.
What is [Ar]4s²?