JJ Thompson and Rutherford

When did Thompson create the Cathode Ray experiment?

1897

When did Thompson win the nobel prize?

1906

What did Thompson originally call electrons?

Corpsicles

What is the atom mostly?

Empty Space

How did Thompson attempt to find the charge of the electron?

He placed positive and negative plates above and below the cathode beam

What was significant about Thompson proving the electron exists?

It meant Dalton was wrong

What were the components of the Gold Foil experiment?

Lead block, slits, scintillation screen, alpha beam, alpha source, and gold foil

In quantum theory the electrons occupy what?

Orbitals

What is the charge of the nucleus?

Positive

What did it mean when the beam in the cathode was deflected between north and south magnets?

The beam had a charge

What did JJ Thompson find?

The electron

If a nucleus were the size of a period (".") how much would it weigh?

The equivalent of 70 automobiles

What experiment did Rutherford use?

The gold foil experiment

Where is the mass of an atom concentrated?

The nucleus

What model did Thompson create with his discoveries?

The plum pudding model

If an atom were the size of two football fields how big would the nucleus be?

The size of a nickel

What did the gold foil experiment determine?

There was a central point of mass in the atom

In which direction was the beam in the cathode tube deflected?

Toward the positive plate (away from the negative plate)

What principle did Heisenberg tell us?

Uncertainty: You can't know the nature of matter