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SOL Review #2: Electrons in atoms
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Gravity
Terms in this set (11)
Wavelength
Horizontal distance between the crests or between the troughs of two adjacent waves
Frequency
The number of complete waves that pass a point in a given time
H
Planck's constant = 6.626x10^-34
Photons
Particles of light
Neils Bohr
-Electrons are in energy levels, the further an electron was from the nucleus, the higher its energy
-developed the planetary model
-Electrons travel in distinct orbits and there are only certain allowed orbits, but electrons can move to different orbits.
-Electrons absorb and emit energy in discrete amounts (quanta) as they move from one orbit to another.
-Hydrogen's atomic emission spectrum results from electrons dropping from higher-energy atomic orbits to lower-energy atomic orbits.
Louis de Broglie
-electrons have both wave and particle characteristics
-electrons are restricted to certain energy levels and to certain wavelengths and frequencies
-the deBroglie equation predicts that all moving particles, no matter the size, have wave characteristics
Werner Heisenburg
-The Uncertainty Principle: position and speed of an electron cannot be determined at the same time
Erwin Schrodinger
-derived mathematical equations that treat hydrogen's electron as a wave
-the solution of the equation gives a probability of finding an electron
-3d atomic orbitals (s,p,d,f) describe the electron's location
Aufbau Principle
Electrons will occupy the lowest energy level available
Pauli Exclusion Principle
Max of two electrons per orbital, both opposite spins
Hund's Rule
bunk bed analogy
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