Module 16: L1 ck - Atomic Structure

Front

What model of the atom represents electrons in a positively charged matter?

Back

Thomson's model.

Front

Which atomic particle is electrically neutral?

Back

Neutron.

Front

Who provided proof that atoms exist in the 19th century?

Back

John Dalton.

Front

Which subatomic particles have equal and opposite charges?

Back

Protons and electrons.

Front

What was the method used to discover the 6th quark?

Back

Studying proton collisions.

Front

What is the charge of a proton?

Back

Positive.

Front

What is the charge of an electron?

Back

Negative.

Front

What is the nucleus of an atom composed of?

Back

Protons and neutrons.

Front

What is the main difference between isotopes of an element?

Back

They have different numbers of neutrons.

Front

What did Rutherford's gold foil experiment demonstrate?

Back

The existence of a dense nucleus in the atom.