A form of energy that exhibits wavelike behavior as it travels through space (3.00x10⁸ m/s)
Combination of all the forms of electromagnetic radiation.
Distance between corresponding points on adjacent waves.
Number of waves that pass a given point in a specific time, usually one second.
One wave per second.
Emission of electrons from a metal when light shines on a metal.
Minimum quantity of energy that can be lost or gained by an atom.
Particle of electromagnetic radiation having zero mass and carrying a quantum of energy.
Lowest energy state of an atom.
State in which an atom has a higher potential energy than it has in it's ground state.
Narrow beam of the emitted light was shined through a prism, it was separated into four specific colors of the visible spectrum.
The emission of a continuous range of frequencies of electromagnetic radiation.
Heisenberg Uncertainty Principle
States that it is impossible to determine simultaneously both the position and velocity of an electron or any other particle.
Describes mathematically the wave properties of electrons and other very small particles.
A 3D region around the nucleus that indicates the probable location of an electron.
Specify the properties of atomic orbitals and the properties of electrons in orbitals.
Principle Quantum Number
The total amount of energy level an atom has. (7)
Angular Momentum Quantum Number
The suborbitals of an atom. (S, P, D, F)
Magnetic Quantum Number
Which suborbital. (Py, Px, Pz)
Spin Quantum Number
Which way it spins. (up or down)
The arrangement of electrons in an atom
An electron occupies the lowest-energy orbital that can receive it
Pauli exclusion principle
No two electrons in the same atom can have the same set of four quantum numbers
Orbitals of equal energy are each occupied by one electron before any orbital is occupied by a second electron, and all electrons in singly occupied orbitals must have the same spin state.
The Group 18 elements (helium, neon, argon, krypton, xenon, and radon)
noble gas configuration
An outer main energy level occupied, in most cases, by 8 electrons