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24 Cards in this Set

  • Front
  • Back
F orbitals
are complex
Max Planck
energy is gained or lost was in whole # multiples
meant that energy was quantized (discrete amounts)
Quantum Mechanics
branch of mathamatical physics treating PT with mathetmatical quantities
Quantum Mechanics
branch of mathamatical physics treating PT with mathetmatical quantities
Newton's Laws
-matter consists of particles
-energy in the form of light is a continunous wave
Hund's Rule
when electrons occupy orbitals of equal energy one enters each until all the orbitals contain one electron with parallel spins
Aufbau principal
electrons enter orbitals of the lowest energy level first
Louis de Broglie
electrons had particle like and wave like properties
Ground state
Bohrs model placed electrons on their lowest energy state
P orbitals
lobes in shape
Pauli exclusion principle
-an atomic orbital may describe at the most two electrons
-when to electrons occupy the same orbital they have opposite spins
Schrodinger
developed mathematical model of the atom called Quantum Mechanical Model
Henry Mosley
reordered elements according to their atomic numbers
Henry Mosley
reordered elements according to their atomic numbers
electrons follow fixed orbits which
each have their on quantum of energy
Neil Bohr
develope new model of atom
-put circles around nucleus
-the specific amount of energies that an electron had was called quantums of energy
D orbitals
lobes and donut rings
Dmitri Medeleev
made PT by arranging elements in order of their atomic masses in columns, and rows by chemical composition
S orbitals
spherical in shape
columns
similar chemical properties
Heisenberg
Uncertainity Principal- electrons so small can never know enough to know the posistion of an electron
Einstein proposed duality of light
light has wavelike and particle like properties
90% probablitity
that the Quantum Mechanical Model descirbes the electron's position
rows
called periods because there was a periodic pattern which was repeated in each row of properties increasing or decreasing