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QuestionAnswer
Democritus First to propose the idea of atoms.
Dalton Proposed the solid sphere model
Thompson Cathode Ray experiments and the Plum Pudding Model
Rutherford Gold Foil Experiment and the Nuclear Model
Schrodinger Proposed the Quantum model also known as the Electron Cloud model
Bohr Proposed the model that said that electrons were confined to specific energy orbits around the nucleus of the atom .
What is the Solid Sphere Model? Atoms are indestructible, uniform solid spheres with no internal structure.
Bohr Model Fixed circular paths or energy levels and they emit energy only when jumping between discrete orbits.
Plum Pudding Positively charged negatively charged electrons embedded in it
Proton Model Same as Bohr but nucleus contains protons
Nuclear Model Tiny dense positively charged nucleus at the enter orbited by negatively charged electrons
Electron cloud Electrons cannot be precisely decided by a region of probability surrounding the nucleus where electrons are to be found
Alpha Particle Mass energy charge penetrating power heavy very low + weak
Beta particle Mass energy charge penetrating power light medium low - moderate
Gamma particle Mass energy charge penetrating power no mass high 0 very high
The atomic weapons used in World War II used a what reaction to generate a majority of their destructive power fission
Who is Henri Becquerel Discovered that uranium emitted a mysterious particle that fogged film. First experimental evidence that atoms were not indestructible.
What is a octet A energy level that is full and has 8 valence electrons
Created by: sydneymiller!!!
 



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