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Semester 1 Review

Total questions: 70

Worksheet time: 1hrs 10mins

Name
Class
Date
1.
Express the following in scientific notation:
.000457
a)
457 x 106
b)
457 x 10-6
c)
4.57 x104
d)
4.57 x 10-4
2.

Rewrite in standard form: 3.97  x  10-2

a)
0.000397
b)
0.0397
c)
0.0000397
d)
0.397
3.

A water jug can hold 18,000 milliliters of water. How much is that in liters?

a)

18 liters

b)

180 liters

c)

1,800 liters

d)

18,000,000 liters

4.

What is the reading in the burette above?

a)

33.40cm3

b)

32.60cm3

c)

17.40cm3

d)

16.60cm3

5.

What prefix is represented by the following symbol: m

a)

hecto

b)

kilo

c)

milli

d)

mega

6.

Which of the following is a physical change?

a)

dry ice sublimating into a gas

b)

hydrogen and oxygen producing water

c)

a woman dyes her hair blonde

d)

iron lawn furniture rusting after rain

7.

At the very center of an atom, is the ​ (a)   . It contains positively charged particles called ​ (b)   . Every atom of the same element has the same number of protons, called the ​ (c)   . ​ (d)   can be identified by their atomic number.

Choose from the below words
nucleus
protons
atomic number
Elements
electrons
8.
What does the nucleus of an atom contain?
a)
Electrons & Neutrons
b)
Protons & Neutrons
c)
Neutrinos & Positrons
9.

Electrons are:

a)

Positive

b)

Neutral

c)

Negative

10.

What is the atomic number of an element?

a)

The number of protons in the nucleus

b)

The number of neutrons in the nucleus

c)

The total number of protons and neutrons in the nucleus

d)

The total number of protons and electrons in an atom

11.

What is the charge of a neutron?

a)

+1

b)

0

c)

-1

d)

It depends on the atom

12.

What two subatomic particles are located inside the nucleus?

a)

Electrons and neutrons

b)

Protons and electrons

c)

Protons and neutrons

13.

The smallest unit of matter is?

a)

Compound

b)

Atom

14.

What is the law of conservation of mass?

a)

Mass is neither created nor destroyed during chemical or physical reactions.

b)

If two or more different compounds are composed of the same two elements.

c)

A chemical compound contains the same elements in exactly the same proportions by mass regardless of the size.

15.

Electrons are:

a)

Positive

b)

Neutral

c)

Negative

16.

Ions have the same number of protons but different number of _________________

a)

neutrons

b)

electrons

c)

protons

d)

toes

17.

Electrons fill energy levels and sublevels _____ in energy first.

a)

lower

b)

higher

18.

Which of the following is the electron configuration for Fluorine

a)
b)
c)
d)
19.
In an orbital diagram,  an arrow represents: 
a)
an electron
b)
an orbital
c)
an element
20.

What is a group

a)

Up and down column on the periodic table

b)

Side to side row on the periodic table

21.

What is a period

a)

Up and down column on the periodic table

b)

Side to side row on the periodic table

22.

What group is carbon in?

a)

1

b)

2

c)

13

d)

14

e)

15

23.

Which is a transition metal?

a)

Aluminum

b)

Calcium

c)

Sodium

d)

Chromium

24.

Which element is found in group 2, period 6?

a)

Oxygen (O)

b)

Barium (Ba)

c)

Selenium (Se)

d)

Carbon (C)

25.

Which halogen is found in period 4?

a)

Krypton (Kr)

b)

Xenon (Xe)

c)

Bromine (Br)

d)

Iodine (I)

26.
Elements which are shiny, conduct electricity and heat are called
a)
metal
b)
nonmetal
c)
metalloid
d)
nonexistent
27.

Which element is similar to Li?

a)

Be

b)

K

c)

Fe

d)

I

28.

Which element is the least reactive?

a)

Li

b)

Ne

c)

B

d)

C

29.
Which group of the periodic table is composed of inert (not reactive)  gases?
a)
alkali metals
b)
alkaline earth metals
c)
halogens
d)
noble gases
30.
The atoms along the staircase are called 
a)
metals
b)
nonmetals
c)
metalloids
d)
noble gases
31.
How many protons are in this element?
a)
79
b)
196
c)
117
d)
Cannot be determined
32.
How many electrons does potassium K contain? (click to see image)
a)
19
b)
39
c)
20
d)
40
33.
What is the mass number and name of an element with 8 protons and 8 neutrons?
a)
16 - Carbon
b)
16 - Oxygen
c)
24 - Oxygen
d)
8 - Neon
34.

How many valence electrons does sulfur have?

a)

3

b)

6

c)

16

35.
_________are not good conductors of heat or electricity
a)
    Metals
b)
   Metalloids
c)
Nonmetals
d)
gold
36.

Choose the alkali metals.

A
B
C
D
E
F
G
H
I
37.

Select the Noble Gases on the periodic table

A
B
C
D
E
38.

Identify where the following atoms would be placed.

a)Poor conductors
b)Good conductors
c)Solids
d)Gases
1
2
3
4
1)
2)
3)
4)
39.

Match the following

a)
1.

alkali metals

b)
2.

alkaline earth metals

c)
3.

transition metals

d)
4.

halogens

e)
5.

noble gases

40.

As wavelength shrinks on the electromagnetic spectrum, the frequency...

a)

Increases

b)

Decreases

c)

Stays the same

d)

Disappears

41.

Which of these is the wavelength?

A
B
C
D
42.

Which of the following has the most energy?

a)

TV

b)

Microwaves

c)

Radiowaves

d)

Infrared

43.

What type of bond is depicted in the image?

a)

Covalent

b)

Polar Covalent

c)

Ionic

44.

What type of bond is depicted in the image?

a)

Covalent

b)

Polar Covalent

c)

Ionic

45.

Cations _______ electrons, becoming _______ charged.

a)

Gain; positively (+)

b)

Gain; negatively (-)

c)

Lose; positively (+)

d)

Lose; negatively (-)

46.

Anions ____ electrons, becoming _____ charged.

a)

Gain; positively (+)

b)

Gain; negatively (-)

c)

Lose; positively (+)

d)

Lose; negatively (-)

47.

What state of matter?

a)

Solid

b)

Liquid

c)

Gas

48.

Phase change from gas to liquid is called:

a)

Melting

b)

Freezing

c)

Deposition

d)

Condensation

49.

Phase change from liquid to gas is called:

a)

Freezing

b)

Condensation

c)

Vaporization

d)

Sublimation

50.
Molecules are closest together in a 
a)
Solid
b)
Liquid
c)
Gas
d)
plasma
51.
How many neutrons does a Calcium 48 isotope have?
a)
16
b)
20
c)
28
d)
12
52.

What is the isotope name of this atom?

a)

Magnesium - 22

b)

Magnesium - 20

c)

Magnesium

d)

Magnesium - 24

e)

Titanium - 22

53.

What isotope is shown here? (Red = protons, gray = neutrons, blue = electrons)

a)

Beryllium-5

b)

Beryllium-9

c)

Boron-4

d)

Boron-9

54.
How many significant figures: 216 m
a)
1
b)
2
c)
3
d)
0
55.

How many significant figures does the following number have: 0.002040

a)

6

b)

4

c)

3

d)

1

56.

How many electrons are present in the Orbital Diagram shown?

a)

7

b)

13

c)

3

d)

1

57.
At higher temperatures
a)
particles in an object have less energy
b)
particles in an object move faster
c)
a gas contracts
58.

If an object is more dense than water, it will...

a)

Sink

b)

Float

59.
What method is being used in this picture?
a)
Determining mass
b)
Finding the density
c)
Water displacement
d)
The triangle trick
60.

What are valence electrons?

a)

The total number of electrons in an atom

b)

The number of electrons in the outermost shell

c)

The number of electrons in the second shell

d)

The number of protons in the outermost shell

61.
Most elements will gain or lose electrons so that they end up with _______ valence electrons.
a)
2
b)
6
c)
8
d)
10
62.

According to what we've learned in class, silver has the following electron configuration

a)

[Kr] 5s2 4d9

b)

[Kr] 5s1 4d10

c)

[Kr] 5s2 5d9

d)

[Kr] 5s1 5d10

63.
What is the number of valence electrons for Krypton?
a)

10

b)

2

c)

8

d)

3

e)

5

64.

This is a Bohr Diagram of Aluminum. How many valence electrons does Aluminum have?

a)

3

b)

4

c)

5

65.
What property of this wave is represented by the letter "A"
a)
amplitude
b)
crest
c)
trough
d)
wavelength
66.
Which wave in the diagram has the greatest frequency?
a)
1
b)
2
c)
3
d)
4
67.

The lower the frequency the ______ the energy.

a)

higher

b)

lower

c)

neither, stays the same

68.

Shares electrons in order to fill an energy level

a)

Metallic bond

b)

Ionic bond

c)

Covalent Bond

69.

Generally occurs between metal and nonmetal

a)

Metallic

b)

Ionic

c)

Covalent

70.
What two types of atoms make a covalent bond?
a)

2 Nonmetals

b)

1 Nonmetal & 1 Metal

c)

2 Metals

d)

2 Noble Gases

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