Front

Who stated that "Everything is composed of atoms"? Options: Democritis, Dalton, Moseley, Einstein

Back

Democritis

Front

What did John Dalton state?

Back

Elements are made of atoms, atoms of a given element are identical, atoms cannot be subdivided, created, nor destroyed.

Front

The scientist responsible for "discovering" the nucleus is: Bohr, Rutherford, Schroedinger, Einstein

Back

Rutherford

Front

The nucleus of an atom can be described as: spacious and negatively charged, dense and positively charged, spacious and positively charged, dense and negatively charged

Back

dense and positively charged

Front

Why are electrons not factored into atomic mass?

Back

They are so small their mass is negligible.

Front

How did Rutherford discover the proton?

Back

Gold Foil Experiment

Front

What does the nucleus of an atom contain?

Back

Protons and neutrons

Front

True or False: The majority of an atom is made up of empty space

Back

True

Front

atom

Back

Indivisible

Front

What scientist is best known for his "Plum Pudding" model of the atom? Options: J.J. Thomson, Ernest Rutherford, John Dalton, Democritus

Back

J.J. Thomson