Unit 3 - Atomic Theory 1.2

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

The image is an example of a(n)

Stated that all atoms of a given element are identical.

Gave us the "Nuclear Model" of the atom.

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

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

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

The image is an example of a(n)

Discovered that atoms are mostly empty space.

Considered the "Father of Modern Chemistry"

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

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

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

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

Performed the "Cathode Ray Tube Experiment"

Performed the "Oil Drop Experiment"

Electrons in the outermost principle energy levels are referred to as

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

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

Performed the "Gold Foil Experiment"

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

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

The image is an example of a(n)

Discovered the electron

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

The image is an example of a(n)

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

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

Discovered the neutron

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