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C05 Atomic Theory Homework

Total questions: 59

Worksheet time: 34mins

Name
Class
Date
1.

Thought all matter was made up of the elements: earth, air, water, and fire.

a)

Democritus

b)

Ernest Rutherford

c)

John Dalton

d)

Aristotle

e)

J.J. Thomson

2.

Gold Foil Experiment

a)

Neils Bohr

b)

Democritus

c)

John Dalton

d)

Ernest Rutherford

e)

JJ Thomson

3.

Cathode Ray Tube Experiment

a)

Neils Bohr

b)

Democritus

c)

John Dalton

d)

Ernest Rutherford

e)

JJ Thomson

4.

First person to suggest the idea of the atom.

a)

Democritus

b)

Ernest Rutherford

c)

John Dalton

d)

Aristotle

e)

J.J. Thomson

5.

His work discovered atoms have a nucleus, positive protons, and electrons that travel around nucleus

a)

Neils Bohr

b)

Democritus

c)

John Dalton

d)

Ernest Rutherford

e)

JJ Thomson

6.
This contains most of the mass of an atom
a)
Electron Cloud
b)
Nucleus
c)
Electron
7.
This particle is found in the nucleus and has a positive charge
a)
Electron
b)
Proton
c)
Neutron
8.
This particle is found in the nucleus and has no charge
a)
Neutron
b)
Proton
c)
Electron
9.
This is a negatively charged particle found outside the nucleus
a)
Electron
b)
Proton
c)
Neutron
10.
All matter is made of what?
a)
energy 
b)
atoms 
c)
electrons 
d)
compounds 
11.

Rutherford's gold foil experiment discovered the

a)

electron

b)

neutron

c)

atom

d)

nucleus

12.
An atom's overall charge is ________.
a)
positive 
b)
depends
c)
neutral 
d)
negative 
13.
What does the nucleus of an atom contain?
a)
Electrons and neutrons
b)
Protons and neutrons
c)
Neutrinos and positrons
d)
DNA and RN
14.
True or False: The majority of an atom is made up of empty space
a)
True
b)
False
15.

–Each element consists of tiny invisible particles called atoms

–All atoms of the same element are identical in size, mass, and properties (not quite) but atoms of different elements are different in size, mass, and properties.

–Atoms cannot be subdivided, created, nor destroyed (not quite).

–Atoms of different elements combine in simple, whole-number ratios to form compounds.

–In chemical reactions, atoms are combine, separated, or rearranged.

a)

Dalton's Atomic Theory

b)

Democritus Atomic Theory

c)

Quantum Mechanical Atomic Theory

d)

Modern Atomic Theory

16.

Electrons have what kind of charge?

a)

neutral or no charge

b)

negative

c)

positive

17.

Neutrons have what kind of charge?

a)

neutral or no charge

b)

negative

c)

positive

18.

Protons have what kind of charge?

a)

neutral or no charge

b)

negative

c)

positive

19.

Atoms contain the same number of protons & electrons, therefore,

a)

atoms are positive

b)

atoms are neutral

c)

atoms are negative

20.

Produced the first atomic theory.

a)

Neils Bohr

b)

Democritus

c)

John Dalton

d)

Ernest Rutherford

e)

JJ Thomson

21.

Produced a model of an atom to explain that line spectra are produced from photons produced when electrons change to lower energy levels.

a)

Neils Bohr

b)

De Broglie

c)

John Dalton

d)

Ernest Rutherford

e)

JJ Thomson

22.

Produced first model of the atom that had electrons behaving as standing waves.

a)

Neils Bohr

b)

De Broglie

c)

John Dalton

d)

Ernest Rutherford

e)

JJ Thomson

23.

Quantum model of the atom. (Mark all that apply.)

a)

Neils Bohr

b)

De Broglie

c)

Schrödinger

d)

Albert Einstein

e)

Heisenberg

24.

Discovered that atoms contain negatively charged particles.

a)

Neils Bohr

b)

Democritus

c)

John Dalton

d)

Ernest Rutherford

e)

JJ Thomson

25.

1.All matter is composed of atoms.

2.Atoms of one element differ in properties from atoms of another element.

3.Atoms are divisible into smaller particles called subatomic particles.

4.A given element is made up of atoms with different masses. (Isotopes)

5.Chemical reaction involves only the combination, separation, or rearrangement of atoms.

6.Compounds are formed by the combination of atoms in small whole number ratios.

a)

Dalton's Atomic Theory

b)

Democritus Atomic Theory

c)

Quantum Mechanical Atomic Theory

d)

Modern Atomic Theory

26.

His paper on the explanation of Brownian motion led to the wide spread acceptance of the atom.

a)

Neils Bohr

b)

De Broglie

c)

Schrödinger

d)

Albert Einstein

e)

Heisenberg

27.

Match the following

a)

1.

oil drop experiment

b)

2.

cathode ray tube

c)

3.

Gold Foil Experiment

d)

4.

Emission Line Spectrum

28.
a)

oil drop experiment

b)

cathode ray tube experiment

c)

gold foil experiment

d)

gas discharge tube amalgamation

e)

emission line spectrum

29.
a)

oil drop experiment

b)

cathode ray tube experiment

c)

gold foil experiment

d)

gas discharge tube amalgamation

e)

emission line spectrum

30.
a)

oil drop experiment

b)

cathode ray tube experiment

c)

gold foil experiment

d)

gas discharge tube amalgamation

e)

emission line spectrum

31.

"Atomic Fingerprints" Used to identify elements in samples, stars, and atmospheres of planets.

a)

oil drop experiment

b)

cathode ray tube experiment

c)

gold foil experiment

d)

gas discharge tube amalgamation

e)

emission line spectrum

32.
a)

Quantum model

b)

planetary/nuclear model

c)

plum pudding model

d)

Bohr model

e)

De Broglie model

33.

Match the Model of the Atom with its name.

a)

1.

Quantum model

b)

2.

planetary/ nuclear model

c)

3.

plum pudding model

d)

4.

Bohr model

e)

5.

De Broglie model

34.

Match the Model of the Atom with the scientist credited with its discover.

a)

1.

De Broglie, Heisenberg, Schrödinger,

b)

2.

Rutherford

c)

3.

Thompson

d)

4.

Neils Bohr

e)

5.

Dalton

35.

Match the Model of the Atom with its name.

a)

1.

planetary/ nuclear model

b)

2.

plum pudding model

c)

3.

Bohr model

d)

4.

De Broglie model

e)

5.

Billiard Ball Model

36.

What model of the atom?

a)

Quantum model

b)

planetary/ nuclear model

c)

plum pudding model

d)

Bohr model

e)

De Broglie model

37.
a)

Quantum model

b)

planetary/nuclear model

c)

plum pudding model

d)

Bohr model

e)

De Broglie model

38.
a)

billiard ball model

b)

planetary/nuclear model

c)

plum pudding model

d)

Bohr model

e)

quantum model

39.
a)

billiard ball model

b)

planetary/nuclear model

c)

De Broglie model

d)

Bohr model

e)

plum pudding model

40.
a)

billiard ball model

b)

planetary/nuclear model

c)

quantum model

d)

Bohr model

e)

plum pudding model

41.
a)

Dalton

b)

Rutherford

c)

Thomson

d)

De Broglie, Heisenberg, and Schrödinger

e)

Bohr

42.
a)

Dalton

b)

Rutherford

c)

Thomson

d)

De Broglie, Heisenberg, and Schrödinger

e)

Bohr

43.
a)

Dalton

b)

Rutherford

c)

Thomson

d)

De Broglie, Heisenberg, and Schrödinger

e)

Bohr

44.

Which laws did John Dalton base his atomic theory on? (Multi-Select)

a)

Law of Conservation of Energy

b)

Dalton's Law of Quantum Mechanics

c)

Law of multiple proportions

d)

Law of conservation of mass

e)

Law of definite proportions (constant composition)

45.

Pure substance containing only one type of atom.

a)

atom

b)

compound

c)

element

d)

molecule

e)

isotope

46.

Atoms of the same element with a different mass.

a)

atom

b)

compound

c)

element

d)

molecule

e)

isotope

47.

Smallest particle of an element that still maintains the properties of that element.

a)

atom

b)

compound

c)

element

d)

molecule

e)

isotope

48.

The beam of electrons was deflected away from the negative charge plate proved that

a)

electrons are a fundamental particle (found in all matter)

b)

electrons have mass

c)

electrons are positively charged

d)

electrons behave like a wave

e)

electrons are negatively charged

49.

The beam of electrons caused the paddle wheel to spin

a)

electrons are a fundamental particle (found in all matter)

b)

electrons have mass

c)

electrons are positively charged

d)

electrons behave like a wave

e)

electrons are negatively charged

50.

The beam of electrons (cathode rays) where produced no matter what metal the cathode was made out of.

a)

electrons are a fundamental particle (found in all matter)

b)

electrons have mass

c)

electrons are positively charged

d)

electrons behave like a wave

e)

electrons are negatively charged

51.

What did they expect to happen to the alpha particles in the gold foil experiment?

a)

half to be deflected and half to pass straight through the gold foil

b)

all of the alpha particles to pass straight through the gold foil

c)

all of the alpha particles to bounce back from the gold foil

d)

most to pass straight through, some deflected at a small angle, and a few to bounce almost straight back

52.

What actually happened to the alpha particles in the gold foil experiment?

a)

half to be deflected and half to pass straight through the gold foil

b)

all of the alpha particles to pass straight through the gold foil

c)

all of the alpha particles to bounce back from the gold foil

d)

most to pass straight through, some deflected at a small angle, and a few to bounce almost straight back

53.

In the gold foil experiment, some of the alpha particles were deflected at a small angle proving

a)

the existence of a small volume with a large mass inside the atom

b)

that the atom is mostly empty space

c)

that the nucleus is positively charged

d)

the existence of a large volume with a small mass in the center of the atom

e)

that the nucleus is negatively charged

54.

In the gold foil experiment, most of the alpha particles passed straight through proving

a)

the existence of a small volume with a large mass inside the atom

b)

that the atom is mostly empty space

c)

that the nucleus is positively charged

d)

the existence of a large volume with a small mass in the center of the atom

e)

that the nucleus is negatively charged

55.

In the gold foil experiment, a few of the alpha particles bounced almost straight back proving

a)

the existence of a small volume with a large mass inside the atom

b)

that the atom is mostly empty space

c)

that the nucleus is positively charged

d)

the existence of a large volume with a small mass in the center of the atom

e)

that the nucleus is negatively charged

56.

Thomson's Cathode Ray Tube experiment discovered the

a)

electron

b)

neutron

c)

atom

d)

nucleus

57.

The random movement of particles suspended in a fluid is known as

a)

Einsteinian motion

b)

Ciliar movement

c)

Bohrian motion

d)

Brownian motion

58.

What causes Brownian motion of pollen grains in water?

a)

the collision of water molecules with the grains of pollen

b)

cilia on the pollen grains

c)

flagellum on the pollen grains

d)

diffusion of the water molecules

59.

How big is the nucleus compared to the diameter of the the atom? The nucleus is________ the diameter of the atom.

a)

1/2

b)

1/10

c)

1/100

d)

1/1000

e)

1/100000

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