The distance between neighboring crests of a wave.
What is wavelength?
100
The height of a wave's crest.
What is its amplitude?
100
Discovered the electrons and pictured them stuck in a positively charged ball.
Who is JJ Thomson?
100
1s1
What is Hydrogen?
100
Positively charged subatomic particle found in the nucleus.
What is the proton?
200
Range of wavelengths of electromagnetic radiation.
What is the spectrum?
200
The pattern formed when light passes through a prism and is separated into the different frequencies of light. We did this in class.
What is the atomic emission spectrum?
200
The first man to suggest that the electrons "orbit" around a central nucleus. Hint: Japanese
Who is Hantaro Nagaoka?
200
1s2
What is Helium?
200
Subatomic particle that has no charge but a similar mass as the proton.
What is the neutron?
300
The unit of frequency equal to one cycle per second. (Hint: rent a car!)
What is the hertz?
300
The type of electromagnetic radiation that has the shortest wavelength and the highest frequency?
What is gamma rays?
300
Finds the atom does a have small dense positively charged nucleus by performing the Gold Foil Experiment.
Who is Ernest Rutherford?
300
1s2 2s2
What is Beryllium?
300
The subatomic particle that is located outside of the nucleus and has a negative charge.
What is the electron?
400
The number of wave cycles that pass a given point per unit of time.
What is frequency?
400
The type of electromagnetic radiation that has the longest wavelength and the lowest frequency?
What is radio waves?
400
He proposed that the electrons moved in circular paths at specific energy levels around the nucleus of the Hydrogen atom.
Who is Neils Bohr?
400
1s2 2s2 2p6 3s2 3p6
What is Argon?
400
The subatomic particles that give the atom its mass.
What are the protons and neutrons?
500
Energy waves that travel at the speed of light for example radio waves, microwaves, infrared waves, visible light, ultraviolet light, X-rays and gamma rays.
What is electromagnetic radiation?
500
The kind of electromagnetic radiation that causes your cell phones to ring or message when texting.
What are microwaves?
500
Confirms the existence of the neutron in the nucleus of the atom.
Who is James Chadwick?
500
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p3
What is Arsenic?
500
When atoms of the same element have different numbers of neutrons in the nucleus and therefore different masses.