Question 1

In 1803, John Dalton developed the first atomic theory, which stated...

Accepted Answer

all answers are correct

Answer

Atoms of one element are all the same.

Answer

Atoms of different elements are different.

Answer

Atoms are tiny, invisible particles.

Question 2

What did JJ Thomson discover?

Accepted Answer

electron

Answer

nucleus

Answer

proton

Answer

neutron

Question 3

JJ Thomson's theory was nicknamed _______.

Accepted Answer

Plum Pudding Model

Answer

Electron Cloud

Answer

Solar System Theory

Answer

Billiard Ball Theory

Question 4

The scientist responsible for "discovering" the proton and the nucleus is:

Accepted Answer

Ernest Rutherford

Answer

John Dalton

Answer

Niels Bohr

Answer

Erwin Schroedinger

Question 5

How did Rutherford discover the proton and the nucleus?

Accepted Answer

Gold Foil Experiment

Answer

Plum Pudding Model

Answer

Cathode tube ray experiment

Answer

Planetary Model

Question 6

This scientist improved upon Rutherford's model and suggested that electrons orbit the nucleus like the planets orbit the sun.

Accepted Answer

Niels Bohr

Answer

John Dalton

Answer

Democritus

Answer

JJ Thomson

Question 7

Erwin Schrodinger developed the modern model of the atom, which theorizes that

Accepted Answer

electrons orbit in unpredictable paths.

Answer

electrons are stuck to the outside of the nucleus.

Answer

orbit the nucleus in set pathways.

Question 8

He developed the planetary model of the atom.

Accepted Answer

Bohr

Answer

Thomson

Answer

Rutherford

Answer

Dalton

Question 9

John Dalton stated:

Accepted Answer

all answers are correct

Answer

elements are made of atoms

Answer

atoms cannot be subdivided, created, nor destroyed

Answer

atoms of a given element are identical

Question 10

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

Accepted Answer

JJ Thomson

Answer

John Dalton

Answer

Neils Bohr

Answer

Ernest Rutherford

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