Chemistry: Atoms

The Law of Conservation of Mass:

The Law of Definite Proportions:

The Law of Multiple Proportions:

Dalton's Model of an Atom

How was Dalton's model useful?

What was Dalton's Theory of Matter?

What aspects of Dalton's theory have been proven incorrect?

Thompson's Model of an Atom

How was Thompson's model useful?

How can Thompson's model be misleading?

What experiment did Thompson do that led him to the discovery of the electron?

What happened in the Cathode-Ray experiment?

What was Thompson's Conclusion in his Cathode-Ray Experiment?

What experiment did Rutherford do that led him to the discovery of the Atom's nucleus?

Why did some of the particles from the Gold Foil Experiment deflect back while most didn't?

What was the conclusion of Rutherford's experiment?

Rutherford's Model of the Atom

How is the Rutherford's model useful?

Bohr's Atomic Model

What is Nuclear Force?

The Quantum Model

Why was Bohr's model misleading?

How was Bohr's model useful?

How was Rutherford's model misleading?

What is a Mass Number?

What is the Atomic Number?

Nuclear Symbol

Hyphen Notation

What is the Average Atomic Mass?

Avagadro's Number

What is molar mass?

What do scientists use to detect isotopes of various elements and determine their relative abundances?

How is molar mass measured?

List the Four Quantum Numbers and the specific information about atomic orbitals they provide:

What is the relationship between wavelength and frequency?

How is light like a particle?

How is light like a wave?

What condition needs to be met in order for electrons to be emitted?

What is Quantum?

What happens when an excited atom returns to the ground state from an excited state?

How many ground states do the atoms of a given element have?