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Chem review Quiz

Total questions: 64

Worksheet time: 52mins

Name
Class
Date
1.

Which element has 19 protons?

a)

fluorine

b)

potassium

c)

chlorine

d)

iron

2.

Which element has a mass number of 39?

a)

Potassium

b)

Copper

c)

Calcium

d)

Argon

3.

What is the mass number for silver?

a)

14

b)

79

c)

47

d)

34

4.

What is the name for the element that has 52 electrons?

a)

chromium (Cr)

b)

nickel (Ni)

c)

tellurium (Te)

d)

niobium (Nb)

5.

Which element has 28 neutrons?

a)

cobalt

b)

nickel

c)

silicon

d)

arsenic

6.

How many electrons does arsenic have?

a)

33

b)

75

c)

18

d)

40

7.

What is the atomic number for potassium?

a)

15

b)

19

c)

84

d)

78

8.
What is the atomic number of this atom?
a)
1
b)
3
c)
4
d)
7
9.

What is the mass number of this atom?

a)

1

b)

3

c)

4

d)

7

10.
What is the mass number defined as?
a)
the number of protons
b)
the number of protons and neutrons
c)
the number of neutrons
d)
the number of protons and electrons
11.
What is the mass number defined as?
a)
the number of protons
b)
the number of protons and neutrons
c)
the number of neutrons
d)
the number of protons and electrons
12.
What is the atomic number?
a)
the number of protons
b)
the number of protons and neutrons
c)
the number of neutrons
d)
the number of protons and electrons
13.

How many protons are in a sodium atom, Na? (tap to enlarge the periodic table)

a)

Sodium has 1 proton.

b)

Sodium has 3 protons.

c)

Sodium has 11 protons

14.

Atoms of the same element which have a different number of neutrons are called _________________.

a)

ions

b)

isotopes

c)

quarks

d)

molecules

15.

Which subatomic particle has a negative charge in the atom?

a)

proton

b)

neutron

c)

electron

d)

quark

16.

How many neutrons does C-14 contain? (tap to enlarge the image)

a)

6

b)

7

c)

14

d)

8

17.

How many neutrons does an atom of the isotope Neon-22 have? (tap to enlarge the image)

a)

12

b)

10

c)

22

d)

20

18.

How many electrons are in an atom with an atomic number of 50?

a)

5

b)

8

c)

50

d)

2

19.

ALL atoms of the same element have:

a)

same number of proton

b)

same number of nucleon

c)

different number of neutron

d)

different number of electron

20.
What do these isotopes of carbon all have in common?
a)
neutrons & mass number
b)
atomic number and neutrons
c)
atomic number and electrons
d)
protons, atomic number, and mass number
21.
which atom has  4 neutrons?
a)
Li-6
b)
Li-7
c)
Li-8
d)
they have the same # of neutrons
22.
What quantities vary between isotopes of an element?
a)
protons, electrons, and atomic mass
b)
protons, electrons, and atomic number
c)
neutrons and electrons
d)
neutrons and atomic mass
23.
If X is the symbol for an element, which of the following two symbols represent    isotopes of the same element?     I. 7735X  II. 7733X  III. 8137X  IV. 8135 X
a)
I and II
b)
III and IV
c)
I and IV
d)
I and III
24.
This particle determines what element you have - the elements identity.
a)
electron
b)
proton
c)
neutron
d)
valence shell
25.

What is the mass number and atomic number ?

a)

Mass number = 7, atomic number = 14

b)

Mass number = 14, atomic number = 7

26.

An atomic number of 8 means the atom has ___________

a)

8 neutrons

b)

8 protons

c)

16 electrons

d)

88 protons and electrons

27.

Atomic number for Hydrogen

a)

79

b)

26

c)

2

d)

1

28.

A property that is observed without making changes to the substance.

a)

Chemical Reaction

b)

Chemical Property

c)

Physical Property

d)

Physical Reaction

29.

Which of the following properties can be used to identify an unknown substance?

a)

Temperature

b)

Mass

c)

Density

d)

All of the Above

30.

When baking soda mixes with vinegar, a chemical reaction occurs. This reactivity is an example of a _______________.

a)

Chemical Property

b)

Physical Property

31.

What are the units for density?

a)

g

b)

mL

c)

g/mL

d)

mL/g

32.

Which of the following is an example of a chemical change?

a)

Cutting paper

b)

Sugar burning

c)

Freezing water

33.

What are the units for density?

a)

g

b)

mL

c)

g/mL

d)

mL/g

34.

What are the units for mass?

a)

g

b)

mL

c)

g/mL

d)

mL/g

35.

Water has a density of 1g/mL. If a rock has a density of 1.2g/mL, what will happen when it is placed in water?

a)

The rock will sink.

b)

The rock will float.

c)

The rock will react with the water.

d)

The rock will change the water.

36.

Which object would float in water?

a)

Button (density = .79g/mL)

b)

Rock (density = 3.2g/mL)

c)

Penny (density = 1.3g/mL)

d)

Ball (density = 1.9 g/mL)

37.

Solubility is an example of a....

a)

Physical Property

b)

Chemical Property

38.

Which equation would you use to calculate density?

a)

Mass divided by Volume

b)

Volume divided by Mass

c)

Mass multiplied by Volume

d)

Mass plus Volume

39.

Which equation would you use to calculate mass?

a)

Density divided by Volume

b)

Volume divided by Density

c)

Density multiplied by Volume

d)

Mass plus Volume

40.

Which equation would you use to calculate volume?

a)

Density divided by Mass

b)

Mass divided by Density

c)

Density multiplied by Volume

d)

Mass plus Volume

41.

Choose the one that is a chemical property

a)

Magnetism

b)

Size

c)

Color

d)

Reactivity with water

42.

Choose whether the following is a physical or chemical property: Malleability

a)

Physical

b)

Chemical

43.

Which of the following options provides evidence of a CHEMICAL change?

a)

Wood is burned releasing ash and smoke

b)

Rocks separate when soil is sifted

c)

Water turns to ice when you put it in the freezer

d)

Salt dissolves in water

44.

What is the smallest amount of an element called?

a)

Molecule

b)

Atom

c)

Compound

d)

Electron

45.

What is a pure substance made of only one type of atom called?

a)

Compound

b)

Mixture

c)

Element

d)

Solution

46.

What is a substance made up of two or more elements chemically combined?

a)

Element

b)

Mixture

c)

Compound

d)

Solution

47.

Which of the following is true about molecules?

a)

Atoms can only be of the same type

b)

Atoms can be the same type or different types

c)

Atoms are always different types

d)

Atoms are always the same type

48.
Protons and neutrons clump together to form the __________ of an atom.
a)
nucleus
b)
centrosome
c)
outer shell
d)
orbital
49.
Two or more atoms chemically bonded together are called a
a)
atom
b)
element
c)
molecule
d)
mixture
50.
Elements are made of 
a)
many types of atoms 
b)
the periodic table
c)
one type of atom 
d)
molecules 
51.

How many electrons are in the element Carbon?

a)

2 electrons

b)

6 electrons

c)

4 electrons

d)

None of the above

52.

How would H2O be classified? Check all that apply.

a)

Element

b)

Molecule

c)

Compound

53.

What is the picture displayed?

a)

atom

b)

element

c)

compound

54.
Small positively charged particles that are found in the nucleus of an atom
a)
neutron
b)
ion
c)
proton
d)
electron
55.

How would O₂ be classified. Check all answers that apply.

a)

Element

b)

Molecule

c)

Compound

56.
All matter is made of 
a)
energy 
b)
atoms 
c)
electrons 
d)
compounds 
57.
What is the basic unit of matter and is the smallest particle of an element?
a)
Atoms
b)
Elements
c)
Compounds
d)
Molecules
58.
A molecule is made up of ____ or more atoms.
a)
1
b)
2
c)
3
d)
4
59.

Which part of an atom is represented by the orange circles?

a)

electrons

b)

neutrons

c)

protons

60.

Which part of an atom is represented by the blue circles?

a)

electrons

b)

neutrons

c)

protons

61.

Which part of an atom is represented by the neon green circles?

a)

neutrons

b)

protons

c)

electrons

62.

Match the Chemistry terms to its definition

a)

I am heterogeneous, with large particles

1.

Suspension

b)

I am homogeneous, I have a solute & Solvent

2.

Solution

c)

I look homogeneous, but I can be a gel or foamy

3.

Colloid

d)

I am anything with density/ YOU...

4.

Matter

e)

I am any combination

5.

Mixture

63.

Match the state of Matter with its properties

a)

1.

Solid

b)

2.

Liquid

c)

3.

Gas

d)

4.

Plasma

64.

Match the change of states of Matter

a)

Gas to Liquid

1.

Condensation

b)

Solid to Liquid

2.

Melting

c)

Gas to Solid

3.

Deposition

d)

Solid to gas

4.

Sublimation

e)

Liquid to Gas

5.

Evaporation/Boiling

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