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Chemistry Quiz 1

Total questions: 61

Worksheet time: 15hrs 15mins

Name
Class
Date
1.

Democritus believed all matter is

a)

large particles

b)

fire

c)

water

d)

tiny particles

2.

Democritus believed that the particles can not be

a)

destroyed

b)

added

c)

divided

d)

subtracted

3.

What did Democritus name the particles

a)

atoms

b)

atomos

c)

particles

4.

Democritus ideas were not based on experimentation, True or False?

a)

True

b)

False

5.

Democritus's ideas did explain chemical behavior of substances

a)

True

b)

False

6.

Aristotle believed in atoms

a)

True

b)

False

7.

Aristotle believed:

a)

1)all matter is continuous

2)experimentation was the only way to find atoms

b)

1) mass and charge of electron was negative

2)all matter is composed of varying amounts of four elemental substances air earth fire water

c)

1) all matter is continuous

2)all matter is composed of varying amounts of four elemental substances air earth fire water

8.

Aristotle's beliefs were not challenged until about how many years later

a)

1000

b)

2 million

c)

500

d)

2000

9.

Is John Dalton's theory based on experimentation

a)

yes

b)

no

10.

John Dalton observed that elements combine in compound whole number ratios

a)

True

b)

False

11.

John Dalton concluded that "whole number" (integer) ratios of the reacting element meant that the smallest peice of the combining elements had to be a...

a)

atom

b)

particle

c)

atomos

d)

gamma ray

12.

John Dalton Atomic Theory #4

a)

atoms of one element never change into atoms of another element

b)

all matter is continuous

c)

the particles can not be divided

13.

John Dalton Atomic Theory #1

a)

determined the mass and charge of the electron

b)

99.9% of an atom's mass is in the nucleus

c)

elements are composed of tiny indivisible particles called atoms

14.

John Dalton Atomic Theory #2

a)

atoms can be divided

b)

atoms of the same element are identical and are different from atoms of any other element

c)

neutron's charge is n^0

15.

John Dalton Atomic Theory #3:atoms of different elements can be mixed together or they can chemically combine with atoms of other elements in simple whole number ratios to form compounds; What is the laws name

a)

Law of Definite Proportions

b)

Law of The Quantum Theory

c)

Law of conservation of Mass

16.

Resulting rays were attracted to the positive plate, and must be negatively charged

a)

false

b)

true

17.

J.J. Thomson named the particles

a)

neutrons

b)

protons

c)

electrons

18.

J.J. Thomson concluded that

a)

electrons are in atoms of all elements

b)

electrons orbit around the nucleus

c)

most alpha particles went straight through

19.

J.J. Thomson proposed what kind of model

a)

Bohr Model

b)

Plum Pudding

c)

Dalton Model

20.

the bulk of the matter of the pudding was like (1) with the electrons dispersed throughout like (2)

a)

1)mass

2)charge

b)

1)pudding

2)atom

c)

1)pudding

2)raisins

d)

1)raisins

2)pudding

21.

Robert Millikan determined the mass and the what of the electron

a)

proton relation

b)

charge

c)

simple ratio

d)

years they last

22.

Robert Millikan did what experiment

a)

Cathode Ray tube

b)

Oil Drop

23.

Ernest Rutherford was

a)

The "Father of Nuclear Physics"

b)

Creator of the bohr model

c)

English Physicist

24.

Ernest Rutherford proved that alpha radiation was a stream of what nucleii

a)

oxygen

b)

carbon

c)

helium

d)

hydrogen

25.

Ernest Rutherford directed a beam of alpha particles at a thin gold foil which equals what charged

a)

+2

b)

-2

c)

+5

d)

+9

26.

Ernest Rutherford: Most went straight through. A few of them were greatly deflected some even bounced straight back, therefore atoms must mostly be

a)

positive

b)

full

c)

empty space

d)

full space

27.

Ernest Rutherford: Defined and named the what?

a)

electron

b)

neutron

c)

proton

28.

Niels Bohr: developed the ___ model

a)

Bohr

b)

Plum Pudding

29.

Niels Bohr: figured out that electrons do what around the nucleus

a)

orbit

b)

float

c)

stay still

d)

do 360s

30.

Niels Bohr: showed that electrons move in a ____ energy level in the atom

a)

continuous

b)

discreet

c)

flowy pattern

31.

James Chadwick: named the ____

a)

proton

b)

electron

c)

atom

d)

neutron

32.

Quantum Theory:

A)

B)

C)

D)

a is?

a)

electrons do orbit the nucleus like planets orbit the sun

b)

electrons do not orbit the nucleus like planets orbit the sun

c)

all matter is continous

33.

Quantum Theory:

A)

B)

C)

D)

b is?

a)

electrons do exist in discreet energy levels defined by regions of probability

b)

electrons do exist in continuous energy levels defined by regions of probability

c)

electrons do not exist in continuous energy levels defined by regions of probability

d)

electrons do not exist in discreet energy levels defined by regions of probability

34.

Quantum Theory:

A)

B)

C)

D)

c is?

a)

it is possible to determine the exact location of an electron at any given time

b)

it is impossible to determine the exact location of an electron at any given time

c)

it is possible to determine the exact value of an electron at any given time

35.

Quantum Theory:

A)

B)

C)

D)

how much of an atom's mass is in the nucleus

a)

99.99%

b)

66.666666%

c)

50%

d)

99.9%

36.

protons have what symbol

a)

p+

b)

p-

c)

p0

37.

neutrons have what symbol

a)

n+

b)

n0

c)

n-

38.

electrons have what symbol

a)

e0

b)

e-

c)

e+

39.

proton and neutrons relative mass is 1u

a)

True

b)

False

40.

Hydrogen has 3 isotopes

a)

false

b)

true

41.

Hydrogen has 3 isotopes

the first one is named

a)

protium

b)

hydrogen-1

c)

prodium

42.

Hydrogen has 3 isotopes

the second one is named

a)

deuterium

b)

hydrogen-2

c)

deuterdium

43.

Hydrogen has 3 isotopes

the third one is named

a)

tritdium

b)

hydrogen-3

c)

tritium

44.

isotopes have atomic number on the bottom and the mass number at the top

a)

true

b)

false

45.

use sig-figs for average atomic mass

a)

true

b)

false

46.

Andre Henri Becquerel discovered radioactivity when he observed that uranium emitted radiation without a source of energy

a)

true

b)

false

47.

Marie+ Pierre Curie and Becquerel won the Nobel Peace Prize in what?

a)

technology

b)

atoms

c)

physics

48.

radioactivity is the process by which an atomic nucleus gives off

a)

radiation

b)

atoms

c)

protons

49.

radiation is normal rays that are emitted by a radioactive source

a)

true

b)

false

50.

alphas symbol is a

a)

a

b)

b

c)

e

51.

parent- daughter + alpha

a)

true

b)

false

52.

beta symbol is

a)

b

b)

e

c)

v

d)

y

53.

gamma symbol is

a)

y

b)

b

c)

a

d)

e

54.

Nuclear transmutation occurs when

a)

an isotope of one element transforms into a isotope of another element

b)

a atom of one element transforms into a atom of another element

55.

Nuclear bombardment is basically when a bunch of stuff gets thrown into a nucleus of an atom

a)

false

b)

true

56.

transuranium elements are elements with atomic numbers _ 92

a)

<

b)

=

c)

>

57.

transuranium elements

1) none occur in nature

2) all are radioactive

3) synthesized in nuclear reactors and particle accelerators

a)

false

b)

true

58.

-t 1/2 is the symbol for

a)

gamma

b)

half life

c)

alpha

d)

beta

59.

half life equations 1/2n

a)

true

b)

false

60.

alpha is H 4 on top 2 on bottom

a)

true

b)

false

61.

beta is e 0 on top -1 on bottom

a)

false

b)

true

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