Part of an Atom
Negatively charged subatomic particle.
What is an electron?
First atomic Hypothesis, Greek model, 400 BC, Believed that all matter consisted of tiny units with voids in between.
Who is Democitrus?
Utulized Gold foil and alpha particles and found something being deflected in the air.
What is Ernest Rutherford experiment?
Positively charged subatomic particle.
What is a proton?
Believed that atoms can be rearranged into different substances, like the Greeks. Theory mostly correct with minor modification.
Who is Dalton?
Utulizing a cathode ray tube, found electrons.
What is J.J. Thomsons Model?
Neutrally charged subatomic particle.
What is a neutron?
Proposed moving particles like electrons have some properties of waves.
Who is Louis de Brogile?
Electrons move in spherical orbits at a fixated distance from the nucleus.
What is Bohr’s Model?
T/F
Protons and Neutrons are located in the cloud region.
What is False?
Confirmed the existence of neutrons.
Who is James Chadwick?
Forerunner of the modern fluorescent light tube
What is Crooke’s Cathode Ray Tube?
An ___ is made up of three particles called subatomic particles.
What is an Atom?
Recognized and named oxygen and hydrogen. Known for his role to finding how Oxygen plays in combustion.
Who is Antoine Lavoisier?
Most recent atomic model that describes the electronic structure of the atom.
What is the Quantum Mechanical Model/ Charge-cloud model?