Atomic Theory

Who published an atomic theory in 1808?

• Einstein

• John Dalton

• John Dewey

Unlike the ideas of Democritus and Aristotle, John Dalton's theory was based on ____________ and _________________.

• atoms and molecules

• oxygen and carbon

• evidence and experiments

Did Dalton think that atoms join with other atoms to make new substances?

• Yes

• N0

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Dalton's theory stated that all atoms of a certain element are ___________________.

• destroyed

• identical

• negative

Whose experiments provided evidence that atoms are made up of smaller particles?

• John Dalton

• J.J. Thomson

• John Dewey

What charge do electrons have?

• Negative

• Positive

• Neutral

Every substance is made up of _______________combined in certain ways.

• oxygen

• elements

• atoms

Tags

NGSS.MS-PS1-1

An oxygen atom combines with how many hydrogen atoms to form water?

• 3

• 2

• 1

Tags

NGSS.MS-PS1-1

What does Dalton's theory state?

• All matter is made up of atoms. He thought that atoms cannot be created, divided or destroyed.

• His theory provided evidence that atoms are made up of smaller particles.

• He did not have a theory.

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Dalton thought that atoms join with other atoms to make new _________________________.

• theories

• substances

• molecules

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5