He developed the theory that electrons orbit atoms in concentric circles according to the amount of energy they have.
Who in Neils Bohr?
100
This sub-level has a dumbbell shape.
What is the p sublevel?
100
The distance from the origin to the crest.
What is the amplitude of a wave?
100
photon
What is a "packet of light energy?
100
This tells the amount of energy an electron has.
What is the principle quantum number (or main energy level)
200
He developed the theory that atoms are solid spheres and combine in whole number ratios to make compounds.
Who is John Dalton?
200
This sub-level has a spherical shape.
What is the s sub-level?
200
The distance from one crest to an adjacent crest.
What is a wavelength?
200
When light strikes a metal and electrons are emitted from the metal.
What is the photoelectric effect?
200
This describes the orientation of an orbital around the nucleus.
What is the sub-level? (or second quantum number)
300
He shot alpha particles at gold foil and discovered the nucleus.
Who is Ernest Rutherford?
300
opposite spin
What must electrons in the same orbital have?
300
C
What is the speed of light in a vacuum?
300
He developed the theory that particles move with wave motion.
Who is Louis de Broglie?
300
Aufbau principle
What is the rule that says electrons enter orbitals of lowest energy 1st?
400
He studied "cathode rays", discovered the electron, and developed the "plum pudding model of the atom.
Who is J.J. Thompson?
400
Arrows represent these in orbital notation.
What are electrons?
400
3.0 x 10^8 m/s
What is the speed of light in a vacuum? (or the value of c)
400
h
What is Plank's constant?
400
When electrons enter orbitals of equal energy, one electron enters each orbital until all orbitals have one electron with the same spin before any orbital receives two electrons.
What is Hund's rule?
500
This is the model that explains electron location based on mathematical models and probability.
What is quantum theory?
500
14
How many electrons can an f sub-level hold?
500
frequency times wavelength
What is c?
500
The atom emits a photon of light energy
What happens when an electron drops to a lower energy state?
500
This principle states that no orbital may hold more than 2 electrons and they must have opposite spins.