How many orbitals in s sublevel?
1
How many orbitals in p sublevel?
3
How many orbitals in d sublevel?
5
How many orbitals in f sublevel?
7
Electrons enter lowest-energy orbitals first
Aufbau principle
Atomic orbital can only have 2 electrons (electrons in same orbital have opposite spins)
Pauli exclusion principle
When electrons are in equal energy orbitals, one enters each orbital until all orbitals contain one electron with parallel spins
Hund's rule
Most reactive metal
Francium
Most reactive non-metal
Fluorine
What can't be reactive?
Noble gasses
Ability of element's atoms to attract electrons in a bond
Electronegativity
Half distance between adjacent nuclei
Atomic radius
How much energy to remove an electron
Ionization energy
Energy released when electron is received (like a leash)
Electron affinity
Electromagnetic radiation formula
E=hv
Planck's constant (h)
6.626*10^-24J/s
v
frequency
Velocity/wavelength formula
c=λv
λ meaning
wavelength in meters
Speed of light
3*10^8m/s