Atomic Theory

Complete the sentence:

Each science builds on ___________.

• the work of previous scientist

• progressions of their own work

Tags

NGSS.HS-ESS1-2

NGSS.HS-ETS1-1

The law of conservation of mass says that even though matter can change form its (total) mass 

• always stays the same.

• increases.

• decreases.

Tags

NGSS.HS-PS1-7

What is the tube called that emits light when an electrical current passes through it?

• flourescent tubes

• discharge tubes

• gas tubes

Tags

NGSS.HS-PS4-1

What kind of charge did the cathode ray have?

• positive

• negative

• neutral

Electrons have what kind of charge?

• negative

• positive

• neutral

What did Thompson know about the atom?

• it had a positive charge

• it had a neutral charge

• it had a negative charge

Who developed the Gold Foil Experiment?

• Democritus

• John Dalton

• JJ Thompson

• Earnest Rutherford

The nucleus of an atoms contains

• positively charged particles.

• negatively charged particles.

• neutral particles.

Tags

NGSS.HS-PS1-8

Rutherford's experiment led us to believe...

• most of the atom is empty space.

• the atom has a negative core.

What did Ernest Rutherford discover?

• electrons

• neutrons

• the nucleus

• Gold foil

Tags

NGSS.HS-PS1-8