Front

Discovered the nucleus of the atom through the Gold Foil Experiment

Back

Ernest Rutherford

Front

Proposed the Modern Electron Cloud Model of the atom

Back

Schrodinger & Heisenberg

Front

What is the atomic number of Argon?

Back

18 protons

Front

In a negative ion like O^-2, do you have more protons or electrons?

Back

Number of electrons

Front

What occupies most of the volume of an atom?

Back

Empty space

Front

What is the charge of a proton?

Back

Positive

Front

What is the charge of an electron?

Back

Negative

Front

What is the charge of a neutron?

Back

Neutral

Front

What is the nucleus of an atom made of?

Back

Protons and neutrons

Front

What is the mass number of an atom?

Back

The total number of protons and neutrons in the nucleus