History of the Atom and Basic Atomic Structure

This Scientist model is the most common. They said electrons orbit nucleus at fixed energy levels

• Ernest Rutherford

• Niels Bohr

• John Dalton

• JJ. Thompson

J.J. Thomson provided evidence that an atom...

• is the smallest particle of matter

• contains negatively and positively charged particles

• has an overall negative charge

• has an overall positive charge

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

What scientist first developed 4 rules for atomic theory, and helped kick start modern chemistry?

• J.J. Thomson

• Ernest Rutherford

• John Dalton

• Democritus

Who stated that all atoms of the same element are exactly alike?

• Democritus

• Dalton

• Thomson

• Borh

Niels Bohr suggested that electrons.......

• are found in specific orbits

• electrons are scattered throughout the atom

• electrons move according to their energy level

• electrons are positive

J.J. Thomson provided evidence that an atom...

• is the smallest particle of matter

• contains negatively charged particles

• has an overall negative charge

• has an overall positive charge

The word atom comes from a Greek word "atomos" that means

• Invisible

• Indivisible

• Undivided

• Indestructable 

His atomic model was depicted similar to a planetary/solar system

• Bohr

• Thomson

• Rutherford

• Dalton

Who discovered the electron?

• dalton

• rutherford

• thompson

• milikan

7 smallest part of an element that has all of the properties of that element.

• nucleus

• gem

• mineral

• atom

Tags

NGSS.MS-PS1-1