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Physical Science, 2nd Semester Final Exam Review

Total questions: 60

Worksheet time: 30mins

Name
Class
Date
1.

What are the basic building blocks of ordinary matter?

a)

Atoms

b)

Chemicals

c)

Molecules

d)

Compounds

2.

Atoms consist of 3 basic parts

a)

protons, valence electrons, electrons

b)

nucleus, valence shell, protons

c)

nucleus, electrons, mitochondria

d)

protons, neutrons, electrons

3.

Positively charged subatomic particle

a)

electron

b)

neutron

c)

proton

d)

valence electron

4.

What determines the element's identity?

a)

Protons

b)

Neutrons

c)

Electrons

5.

Which particle has no electrical charge?

a)

protons

b)

neutrons

c)

electrons

6.

Which particle is negatively charged?

a)

proton

b)

neutron

c)

electron

7.

What table shows all the different atoms there are on Earth?

a)

Chemical table

b)

Math Table

c)

Periodic Table

8.

Formula for finding the atomic mass is?

a)

protons + neutrons

b)

protons + electrons

c)

electrons + neutrons

d)

electro+ electrons

9.

The formula for finding the number of neutrons is?

a)

atomic number - valence electrons

b)

atomic mass - atomic number

c)

atomic mass - electrons

d)

atomic number - protons

10.

How many protons does Beryllium have?

a)

2

b)

4

c)

6

d)

8

11.

How many protons calcium have?

a)

10

b)

20

c)

4

d)

8

12.

How many neutrons does Sodium have?

a)

4

b)

8

c)

12

d)

16

13.

What is the atomic mass of Silicon?

a)

20

b)

21

c)

26

d)

28

14.

How many neutrons does Aluminum have?

a)

10

b)

12

c)

14

d)

16

15.

How many neutrons does lithium Have?

a)

2

b)

4

c)

6

d)

8

16.

Are protons and neutrons found inside the nucleus?

a)

True

b)

False

17.

A chemical reaction is when ___________________ or more molecules interact and molecules change.

a)

2

b)

4

c)

6

d)

8

18.

New molecules created in a chemical reaction radiate light differently producing new

a)

smells

b)

weight

c)

molecules

d)

colors

19.

What do we call a solid that suddenly appears in a solution and settles to the bottom?

a)

solid

b)

debri

c)

precipitate

20.

Chemical or physical change? When mixing chemicals you see bubbles!

a)

Chemical change

b)

Physical change

21.

Which indicates a physical change?

a)

Ice melting

b)

fireworks

c)

cooking eggs

d)

bread rising

22.

which one is a chemical change?

a)

ice melting

b)

wood burning

c)

whipping eggs

d)

dicing vegetables

23.

In a chemical change there is a formation of new substances with new chemical properties.

a)

True

b)

False

24.

An electron is

a)

inside the nucleus

b)

outside the nucleus

c)

can be both

25.

The periodic table arranges all of the known elements in order of ________________________ atomic number.

a)

decreasing

b)

increasing

c)

by alphabet

26.

Which one is a property of metals?

a)

brittle

b)

no luster

c)

low melting point

d)

good conductor

27.

Which one is a property of nonmetals?

a)

poor conductor

b)

shiny

c)

ductile

d)

malleable

28.

An element that has the properties of both metals and nonmetals is called a

a)

special metal

b)

transition metal

c)

nonmetal

d)

metalloid

29.

What is the key to reactivity?

a)

neutrons

b)

protons

c)

valence electrons

d)

electrons

30.

An atom is considered stable when its outer shell has how many electrons? (Except Hydrogen and Helium)

a)

2

b)

6

c)

8

d)

4

31.

An atom has 18 protons and 8 valence electrons. Which statement would best identify this element?

a)

The element is highly reactive with eight electrons in its outer shell

b)

The element has an atomic mass of 18

c)

The element is stable because its outer energy level is filled.

d)

The element is a metal

32.

Sodium (Na) is a highly reactive element. Which characteristic of sodium is responsible for its reactivity?

a)

It has 11 protons

b)

Its atomic mass is 22.990

c)

It is a non metal

d)

It has one valence electron

33.

Determine which atom is being described here: Shiny, has the properties of both metals and nonmetals, and has three valence electrons.

a)

Boron

b)

Germanium

c)

Antimony

d)

Tin

34.

Which two elements are in the same period?

a)

Oxygen and Nitrogen

b)

Lithium and Magnesium

c)

Potassium and Sodium

d)

Zinc and Nitrogen

35.

Which element has six valence electrons?

a)

Lithium

b)

Calcium

c)

Sulfur

d)

Neon

36.

Which element is chemically stable (inert)?

a)

Potassium

b)

Xenon

c)

Oxygen

d)

Carbon

37.

Whats is an example of thousands of bonded atoms?

a)

H2O

b)

DNA

c)

CO2

d)

KCL

38.

Regarding energy levels in the electron cloud level 1 can hold how many electrons?

a)

2

b)

4

c)

8

d)

10

39.

Regarding energy levels in the electron cloud level 2 can hold how many electrons?

a)

2

b)

4

c)

6

d)

8

40.

What type of bond transfers electrons?

a)

Ionic

b)

Covalent

c)

Electronic

41.

What type of bond involves the sharing of electrons?

a)

Ionic

b)

Covalent

c)

Metallic

d)

Compound

42.

Covalent bonds are formed between

a)

metals

b)

nonmetals

c)

metal and nonmetal

43.

Ionic bonds are formed between

a)

metals

b)

nonmetals

c)

metal and nonmetal

44.

A property of covalent bonding is

a)

high melting point

b)

nonflammable

c)

flammable

d)

non brittle

45.

A property of Ionic Bonding is

a)

High melting point

b)

brittle

c)

flammable

d)

Insoluble

46.

Which element is most likely to gain electrons in a chemical reaction?

a)

Kr

b)

K

c)

Br

d)

Ca

47.

What is the oxidation number of oxygen in most compounds?

a)

6

b)

-2

c)

8

d)

0

48.

How many electrons are shared within a single bond?

a)

0

b)

1

c)

2

d)

4

49.

Which process is taking place in the diagram

a)

Electron transfer

b)

Electron sharing

c)

Electron gain

d)

Electron Loss

50.

Which of the following is the reason why atoms of sodium and chlorine attract each other in a salt crystal?

a)

Sodium has a positive charge and chlorine has a negative charge

b)

Sodium has a negative charge and chlorine has a positive charge

c)

Both have a positive charge

d)

Both have a negative charge

51.

Cations are ions with a _________________ charge that are formed when an atom __________________ electrons.

a)

negative,gains

b)

negative, loses

c)

positive, loses

d)

positive, gains

52.

Why do noble gases rarely form compounds?

a)

Gases are explosive

b)

They are not solids

c)

Because they are already stable.

53.

Is H2O

a)

Covalent

b)

Ionic

54.

Name MgO

a)

Monomagnesium monooxide

b)

Monomagnesium oxide

c)

Magnesium oxide

55.

Name the compound CO

a)

carbon monoxide

b)

carbon dioxide

c)

carbon oxygen

56.

name the following compound N2S

a)

nitrogen sulfide

b)

dinitrogen monosulfide

c)

nitrogen monosulfide

57.
This is a correct dot diagram for oxygen (O)
a)
true
b)
false
58.
This picture shows a...
a)
Ionic Bond
b)
Covalent Bond
c)
Both bonds
d)
Neither bond
59.

Give the correct formula for Tetracarbon decahydride

a)

C4H10

b)

C2H10

c)

CH10

60.
In order for lithium to reach an octet, lithium will...
a)
Gain 2 electrons
b)
Lose 2 electrons
c)
Gain 1 electron
d)
Lose 1 electron

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