exam 2 3.4 & 3.5 & 4.1
what is Aufbau principal
fill the lowest energy levels with electrons first
what is hunds rule
electron fill degenerate (lower energy) orbitals at first singly with parallel spins
Atomic radius difin
atoms size
difin covalent radius
size of covalent bond (half the distence bettween 2 bonded atoms of same element)
metalic radius difin
half the distance between two ajacent metal atoms
how Atomic radius chenge in p table
gets biger toward francium
how do Anions change elemens ratadus
larger then nutral atom
how do cations efect atomic radius
smaller then nutral atoms
what be Ionization energy
the energy required to remove electron
how ionization energy be on p table
it get more toward He
defin Electron Affinity
how much electrons want gain single electron
Electron affinity p trend
toward He
whats an Ionic Bond
Electrostatic forces of attraction bettween oppositly charged cations and anions
what is the Coulomb equation for
Electrostatatic attraction
what is the actual coulomb equation
Electrostatic attraction=1.6002×10^-19((ion1s charge ×ion 2s charge)/distance between ions)
what happens when 2 ions mit +charge get closer
increases repulseion
what happens when 2 ions mit difrent charges get closer
increases attraction
what atoms have ionic bonds
metals and non metals