The two types of spin for electrons.
UP & DOWN
The name for the original model of the atom that involved a positive soup.
PLUM PUDDING MODEL
States that electrons of lower energy fill orbitals before electrons of higher energy.
AUFBAU PRINCIPLE
The two main types of quarks.
UP & DOWN
The orbital that fills immediately after 3d.
4p
The scientist behind the gold-foil experiment that discovered the nucleus.
RUTHERFORD
This would explain why you could never have 1s3
PAULI EXCLUSION PRINCIPLE
The number of up quarks in a proton.
2
The name of the type of element that can be used for abbreviations.
NOBLE GAS
What happened to the majority of particles fired at the gold foil in that experiment.
PASSED STRAIGHT THROUGH
All must be of the same spin direction before any pairing.
HUND'S RULE
The name for an isotope of hydrogen with two neutrons.
TRITIUM
The first element that has an f-orbital electron.
CERIUM
J.J. Thomson discovered electrons coming from this negative end of a CRT.
CATHODE
Two different electrons cannot occupy the exact same quantum state.
PAULI EXCLUSION PRINCIPLE
The energy level number where the f-orbital first shows up.
4
The s in s-orbital stands for this.
SHARP
The approximate size of an electron compared to a proton.
1/2000
Principle by which neutrons help protons stay in the nucleus.
STRONG NUCLEAR FORCE
The largest subatomic particle.
NEUTRON