Atomic Theory
Four Models of Atoms
Rutherford's Model- electrons orbit a core made up of protons and neutrons Plum Pudding Model- a cloud of positive energy with negative energy sprinkled throughout
Bohr's Model- electrons were assumed to move in circular orbits
Wave Mechanic- suggests the probability of the location of the electron
the more intensity of the dot, the more likely there is an electron gives no information about how the electron moves or when it occupies a certain space orbital- the probability map for electrons
Orbital Labeling Rules: the number tells the principal energy level; the letter tells the shape Four Different Types or Orbitals: s, p, d, and f s- will always be just a sphere. always be s^2 or s^1 (1s^2, 2s^2) p- will always be a 3D infinity sign. always be p and any number from 1-6 (4p^3) examples of Electron Configuration: Tc- 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 4d^5 **every noble gas ends in p6 and every Halogen ends in p5 |
frequency- the number of waves made in a certain period of time
wavelength- distance between two consecutive wave peaks as wavelength goes down, frequency goes up speed= wavelength x frequency speed of light= 2.99x10^8 photon- light as a wave (a little ball of light) blue- higher energy red- lower energy white= all colors amplitude- the maximum difference of an alternating electrical current VideosExtra PracticeMore Information |