History
Periodic Table
Atoms
Electrons
Light
100
The first person to propose the idea of an atom.
Who is Democritus?
100
The number which identifies and element and tells us how many protons it has.
What is an atomic number?
100
Small dense center of an atom.
What is the nucleus?
100
1/1840th of an amu.
What is the mass of an electron?
100
The distance from zero to the crest of a wave.
What is amplitude?
200
The person to experiment with gold foil and alpha particles.
Who is Rutherford?
200
Refers to a row in the periodic table.
What is a period?
200
The volume of space occupied by an electron at least 90% of the time as it moves around the nucleus.
What is an electron orbital?
200
Electrons always fill the lowest energy level first.
What is the Aufbau principle?
200
The distance between crests of a wave.
What is the wavelength?
300
Discovered the electron.
Who is J.J. Thomson?
300
A set of elements with similar chemical properties in the same column of the periodic table.
What is a group?
300
Credited with the discover of the proton.
Who is Godstein?
300
The rule of electron configuration that states an electron orbital can have a maximum of 2 paired electrons with opposite spins.
What is the Pauli exclusion principle?
300
The number of cycles that pass a given point in a specific amount of time.
What is the frequency?
400
Gave us the atomic theory.
Who is Dalton?
400
The letters used to identify an element.
What is an elemental symbol?
400
The majority of an atom's volume.
What is empty space?
400
Orbitals of a sublevel are filled with electrons of the same spin before they are paired.
What is Hund's rule?
400
The frequency multiplied by the wavelength of any electromagnetic radiation.
What is c, the speed of light?
500
Credited with the quantum mechanical model of electron orbitals.
Who is Schrodinger?
500
The weighted average mass of an element's isotopes.
What is the atomic mass?
500
An atom.
What is the smallest particle of an element, retaining it's chemical and physical properties?
500
1s2 2s2 2p6 3s2 3p4
What is the electron configuration of sulfur?
500
A small band of wavelength able to be seen by the human eye.
What is visible light?
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