Unit 3 - Atomic Theory

This states each orbital must be singly occupied across the sublevel before it is paired.

Gave us the "Nuclear Model" of the atom.

Gave us the first atomic model of the atom.  The "Hard Sphere Model"

A precise amount of energy released or absorbed by an electron is called a

Stated if an apple were cut in half again & again you would arrive at something indivisible

Discovered that atoms are mostly empty space.

Electrons release photons as they move from the ______ state to the ______ state.

Stated that atoms of different elements are different because they have different masses.

The image is an example of a(n)

What is the name of our modern model of the atom?

Gave us the "Plum Pudding Model" of the atom.

Discovered the electron

Electrons in the outermost principle energy levels are referred to as

Neils Bohr envisioned electrons in set energy levels.  What was his atomic model?

A principle by which most atoms become more stable with eight electrons in the outer shell

The image is an example of a(n)

The image is an example of a(n)

The Pauli Exclusion Principle states that no 2 electrons in the same orbital may have the same

Performed the "Cathode Ray Tube Experiment"

Stated all matter was made from earth, air, water, and fire.

Performed the "Oil Drop Experiment"

For almost 100 years, the Law of Conservation of Mass was know as _________'s Law

The Heisenberg Uncertainty Principle states the more you know about momentum of an electron...

Stated that all atoms of a given element are identical.

Defined as 1/12th the mass of a Carbon-12 

Discovered the neutron

The image is an example of a(n)

Metals ejecting electron with certain minimum frequencies of light are shown upon them is

Performed the "Gold Foil Experiment"

Considered the "Father of Modern Chemistry"