Atomic Theory Timeline
Structure of an Atom
Radioactive Decay
Nuclear Activity
Metal, Nonmetal, or Metalloid?
100
What word does “atom” come from?
Atomos
100
What is located in the center of an atom?
The nucleus
100
What are the types of radioactive decay?
Alpha Decay, Beta Decay, and Gamma Decay.
100
Does fusion or fission split nuclei?
Fission
100
What is hard, shiny, fusible, malleable and ductile?
Metal
200
Who led to the “death of chemistry” for 2000 years?
Aristotle
200
Are protons positively or negatively charged?
Positively Charged
200
What is transmutation?
The process in which alpha and beta decay will change an element.
200
Does fusion or fission combine nuclei?
Fusion
200
What does not conduct heat or electricity well and does not have a high melting or boiling point?
Non-metal
300
Who discovered the electron?
J.J. Thomson
300
Where are electrons located?
Outside of the nucleus
300
Is this alpha decay or beta decay?
Beta decay
300
What is the downside to using nuclear energy as a power source?
It creates radioactive nuclear waste.
300
What is shiny, brittle, solid and has good electrical conductivity?
Metalloid
400
Why is Ernest Rutherford important to the Atomic Theory?
He discovered the nucleus and that electrons are scattered outside of the nucleus.
400
What particle is neutrally charged?
Neutron
400
What is the alpha decay equation for Radium-226?
400
What are the benefits of using nuclear energy?
It is a renewable energy source and it doesn't release direct carbon dioxide emissions.
400
What has a high melting and boiling point?
Metal
500
Who formulated the first atomic theory since the “death of chemistry”?
John Dalton
500
What is the charge of an electron?
-1
500
What are the charges of alpha, beta, and gamma particles?
Alpha: +2
Beta: -1
Gamma: 0
500
How do nuclear power plants create nuclear energy?
By splitting nuclei heat is created, which then heats water to produce steam, and spins the turbines which generate electricity.
500
Is Silicon a metal, nonmetal, or metalloid?
Metalloid