Early Atomic Theories

JJ Thomson was credited for the discovery of the:

• Center of the universe

• Proton

• Electron

• Neutron

Ancient civilizations believed that all matter was made up of 4 basic “elements," which were defined as:

• Air, fire, earth, water

• Carbon, hydrogen, oxygen, nitrogen

• Hydrogen, oxygen, water, air

• Earth, wind, fire, steel

Most historical records consider _________________________ as the Father of Modern Chemistry.

• Isaac Newton

• John Dalton

• Antoine Lavosier

• Albert Einstein

The first universally accepted theory on atoms was proposed in 1803 by:

• Winston Churchill

• John Dalton

• James Bond

• J J Thomson

Which two subatomic particles can be found in the nucleus of an atom?

• Ribosomes and endoplasmic reticulum

• Neutrons and protons

• Electrons and protons

• Protons and alpha particles

What charge do protons have?

• Positive

• Negative

• Neutral

• No charge

What charge do electrons have?

• Positive

• Negative

• Neutral

• No charge

What charge do neutrons have?

• Positive

• Negative

• Neutral

• Neutrons don't exist

What scientist is best known for his "Plum Pudding" model of the atom?

• J.J. Tomson
• Ernest Rutherford
• John Dalton
• Democritus

Tags

NGSS.MS-PS1-1

An atom's overall charge is ________.

• Positive 

• It depends

• Neutral 

• Negative