Democritus and Aristotle
What profession were Democritus and Aristotle?
What are philosophers, not scientists?
____________- Explained by the idea that chemical reactions only rearrange existing atoms without destroying them
What is the Law of Conservation of Mass?
What was Thomson's theory?
What is he proposed that atoms are uniform spheres of positive charge with tiny, negatively charged electrons embedded inside them?
What was Rutherford's famous nickname?
Who is the Father of Nuclear Physics?
What did Schrödinger introduce in 1926
What is the quantum mechanical model of the atom?
What tiny building block makes up all of matter according to Democritus?
What are atoms?
All atoms of a specific element are identical in _____ and ______.
What is mass and size?
What did Thomson discover in 1897
What is the electron?
In 1911, what part of the Atom did Rutherford discover?
What is the nucleus?
What did the math equation produced by Schrödinger accomplish?
What is it calculates the energy levels of electrons in an atom?
What was Aristotle’s contribution to the atomic theory?
What is proposed that everything is made up of the 4 elements: fire, water, earth, and air?
What was Dalton's theory about atoms?
What is that they were completely invisible?
Thomson disproved ______ earlier theory that atoms were invisible and solid.
Who is Dalton?
Bohr became head of which university in Denmark? (now the Niels Bohr Institute)
What is Copenhagen University's Institute for Theoretical Physics?
How did Schrödinger's model differ from Bohr's?
What is Schrödinger's model does not track an exact path?
Whose idea was rejected until 2000 years later, when it was revived by John Dalton?
Who is Democratis?
Dalton viewed atoms as solid, hard spheres, often referred to as the ________.
What is the billiard ball model?
Proposed the "_____ _____" atomic model, which pictured atoms as spheres of positive charge with negative electrons embedded inside
What is the Plum Pudding Model?
What Prize were Bohr and Rutherford both awarded for different discoveries in the science field?
What is the Nobel Prize?
Solving the Schrödinger wave equation produces three of the four standard quantum numbers (principal, angular, and magnetic) that define an orbital's _____, _____, and _____
What is size, shape, and direction?
Who came up with the system of formal reasoning that shaped modern science today?
Who is Aristotle?
True or False- Chemical reactions involve only the separation, combination, or rearrangement of atoms—they are never created or destroyed.
What is true?
Thomson found that these particles were nearly 2,000 times lighter than a hydrogen atom.
How are Bohr's and Rutherford's models of the atom similar?
What is both feature a central nucleus?
What did the quantum mechanical model do?
What is it treats electrons as matter waves rather than particles on fixed paths?