Atomic Theory Scientists

Front

Who discovered the proton?

Back

Rutherford discovered the proton.

Front

Describe the nucleus of an atom.

Back

The nucleus of an atom is dense and positively charged.

Tags

NGSS.HS-PS1-8

Front

Whose model represents the 'plum pudding' model of the atom?

Back

The 'plum pudding' model was proposed by Thomson.

Front

Who developed the electron cloud model?

Back

The electron cloud model was developed by Schrödinger.

Front

What was the significance of the Gold Foil experiment?

Back

The Gold Foil experiment, conducted by Rutherford, demonstrated that atoms have a dense nucleus.

Front

What did Dalton contribute to atomic theory?

Back

Dalton proposed that atoms are indivisible and that each element consists of identical atoms.

Front

What is the charge of an electron?

Back

An electron has a negative charge.

Front

What did Bohr's model of the atom introduce?

Back

Bohr's model introduced the idea of quantized energy levels for electrons.

Front

What is the main idea of the quantum mechanical model of the atom?

Back

The quantum mechanical model describes electrons as existing in probability clouds rather than fixed orbits.

Front

Who discovered the neutron?

Back

The neutron was discovered by Chadwick.