Atomic Theory

Front

Who is known for developing the four rules of atomic theory?

Back

John Dalton

Front

What does Dalton's atomic theory state about atoms of the same element?

Back

All atoms of the same element are exactly alike.

Front

What did Niels Bohr propose about the arrangement of electrons?

Back

Electrons are found in specific orbits.

Front

What particles are found in the nucleus of an atom according to Chadwick?

Back

Protons and neutrons.

Front

What was John Dalton's significant contribution to atomic theory?

Back

He discovered that every element consisted of one type of atom.

Front

What is the basic unit of matter?

Back

Atom.

Front

What is the charge of a proton?

Back

Positive.

Front

What is the charge of a neutron?

Back

Neutral.

Front

What is the charge of an electron?

Back

Negative.

Front

What is the significance of the atomic number?

Back

It represents the number of protons in an atom.