Atomic Model History - Retake & Makeup

Who discovered that the atom had an small, dense, positively charged center?

• Ernest Rutherford

• J.J Thomson

• Robert Millikan

• John Dalton

Tags

NGSS.HS-PS1-8

Place the following atomic models in order, from earliest to latest:

A) Rutherford B) Thomson C) Dalton

• B, C, A

• C, A, B

• A, C, B

• C, B, A

Which model is this?

• Cloud Model
• Rutherford Model
• Thomson Model
• Bohr Model

Which scientist proposed a new atomic model after discovering the electron in 1897?

• Dalton

• Thomson

• Rutherford

• Bohr

What is the correct order of scientists in order of their work related to the atomic theory from earliest to most recent?

• Neils Bohr, Ernest Rutherford, JJ Thomson, & John Dalton.

• JJ Thomson, John Dalton, Neils Bohr, & Ernest Rutherford

• John Dalton, JJ Thomson, Ernest Rutherford, and Neils Bohr

• John Dalton, Neils Bohr, JJ Thomson, & Ernest Rutherford

Who came up with this model of an atom?

• J.J. Thompson
• Ernest Rutherford
• Neils Bohr
• James Chadwick

Tags

NGSS.MS-PS1-1

In Dalton's Atomic Theory, all elements consist of __________ that cannot be divided.

• Atoms
• Parts
• Molecules
• Hydrogen

Tags

NGSS.MS-PS1-1

He found that atoms have smaller parts and found negative electrons that he theorized were surrounded in a sphere of positive charges

• J.J. Thomson

• Ernest Rutherford

• Niels Bohr

• James Chadwick

He found that electrons have specific amounts of energy and move in specific orbits at a fixed distance around the nucleus, like planets orbiting the sun.

• J.J. Thomson

• Ernest Rutherford

• Niels Bohr

• James Chadwick

According to the Cloud Theory, if electrons have higher energy, where are they likely to be located?

• Near the nucleus
• Far from the nucleus
• With another atom
• In outer space