Atomic Scientists

Front

What did Rutherford's gold-foil experiment conclude about the atom?

Back

Most of the atom is empty.

Front

Who proposed that elements are made of tiny solid particles?

Back

Democritus.

Front

Where is most of the mass in an atom located?

Back

In the nucleus.

Front

Who conducted the gold foil experiment?

Back

Ernest Rutherford.

Front

Which scientists are known for founding the electron cloud model?

Back

Schrodinger and Heisenberg.

Front

What is the nucleus of an atom?

Back

The central part of an atom that contains protons and neutrons.

Front

What did J.J. Thomson discover?

Back

The electron.

Front

What is the atomic theory proposed by John Dalton?

Back

All matter is made of atoms, which are indivisible and indestructible.

Front

What is the significance of the gold foil experiment?

Back

It provided evidence for the existence of a small, dense nucleus in the atom.

Front

What did Bohr's model of the atom introduce?

Back

The idea of quantized energy levels for electrons.