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Y9 Unit 4 Review

Total questions: 81

Worksheet time: 49mins

Name
Class
Date
1.

Subatomic particles with a negative charge

a)

Electrons

b)

Neutrons

c)

Protons

d)

Quarks

2.
Subatomic particles with a positive charge
a)
neutrons
b)
atomic mass
c)
protons
d)
isotopes
3.
Measure mainly of the nuclear particles: protons + neutrons
a)
Subatomic Particles
b)
Atomic Number
c)
Atomic Mass
d)
Gluons
4.
Subatomic particles that are neutral in charge
a)
Neutrons
b)
Protons
c)
Nucleus 
d)
Electrons
5.
Value representing the number of protons in an element
a)
Atomic Mass
b)
Mass Number
c)
Valence Electrons
d)
Atomic Number
6.
A tiny but very dense, positively charged portion of the atom that holds most of the atomic mass
a)
Electron Shells
b)
Orbitals
c)
Electron Cloud
d)
Nucleus
7.

What is one way Neutrons are different from electrons?

a)

they both are negative

b)

neutrons have no charge, while electrons have a negative charge

c)

Both are in the nucleus( center of atom)

d)

Electrons are inside nucleus and neutrons are outside the nucleus.

8.

What is the atomic number?

a)

35

b)

18

c)

17

d)

52

9.
What number indicates the nucleus?
a)
1
b)
2
c)
3
d)
4
10.
What number indicates an electron?
a)
1
b)
2
c)
3
d)
4
11.
All matter is made of 
a)
energy 
b)
atoms 
c)
air
d)
chemistry
12.
Referring to the table, what is the relative mass of a proton?
a)
10
b)
1
c)
0.1
d)
0.01
13.
Where are the Electrons found in the structure of an atom?
a)
In the nucleus
b)
In spaces around the nucleus
14.
The subatomic particles in green are...
a)
Protons
b)
Neutrons
c)
Electrons
15.

The Atomic number is known as the _______

a)

Number of electrons in an atom

b)

Number of Protons in an atom

c)

Number of neutrons in an atom

d)

Number of Protons and electrons in an atom

16.

What charge do protons have?

a)

Positive

b)

Negative

c)

Neutral

17.
A tiny but very dense, positively charged portion of the atom that holds most of the atomic mass
a)
Electron Shells
b)
Orbitals
c)
Electron Cloud
d)
Nucleus
18.
The term "neutral" means
a)
having only a little bit of charge
b)
having a positive charge
c)
having a negative charge
d)
having no charge at all
19.
True or False - Protons and Neutrons have about the same mass.
a)
True - They have about the same mass
b)
False - They do not have about the same mass
20.
Which two groups on the Periodic Table are the MOST reactive?
a)
Group 1 and Group 17
b)
Group 2 and Group 16
c)
Group 13 and Group 15
d)
Group 17 and Group 18
21.
Which group on the Periodic Table is inert?
a)
Group 1
b)
Group 2
c)
Group 17
d)
Group 18
22.
How many valence electrons are elements trying to reach in their outer shells?
a)
1
b)
2
c)
5
d)
8
23.
What determines the reactivity of an element?
a)
Size of its nucleus
b)
Number of total electrons
c)
Number of valence electrons
d)
Number of shells
24.
How do you determine the number of valence electrons an element has?
a)
Look at its period
b)
Look at its group
c)
Look at its atomic number
d)
Look at its atomic mass
25.

How many electrons go in the first shell (ring) ?

a)

6

b)

8

c)

4

d)

2

26.

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

a)

3

b)

4

c)

5

27.

How many valence electrons does Lithium (Li) have?

a)

8

b)

1

c)

5

d)

2

28.

How many valence electrons does Bromine (Br) have?

a)

5

b)

6

c)

7

d)

8

29.
What is a valence electron?
a)
an electron that is found in the outermost shell of an atom. 
b)
an electron found in the innermost shell of an atom.
c)
an electron found in the middle shell.
30.

Which element is this?

a)

Nickel

b)

Neon

c)

Sodium

d)

Nitrogen

31.

Name this element.

a)

Argon

b)

Chlorine

c)

Aluminum

d)

Boron

32.

Name this element.

a)

Neon

b)

Magnesium

c)

Sodium

d)

Manganese

33.

What is this element?

a)

Beryllium (atomic #4)

b)

Boron (atomic #5)

c)

Carbon (atomic #6)

d)

Nitrogen (atomic #7)

34.

How many valence electrons?

a)

2

b)

3

c)

4

d)

5

35.

Elements in the same group have the same

a)

energy levels

b)

valence electrons

c)

protons

d)

atomic number

36.

Elements in the same group have the same

a)

mass

b)

energy levels

c)

protons

d)

chemically reactivity

37.

How many valence electrons do alkali metals have?

a)

1

b)

varies

c)

7

d)

8 (and 2)

38.

How many valence electrons do noble gases have?

a)

1

b)

varies

c)

7

d)

8 (and 2)

39.

What are valence electrons?

a)

all the electrons

b)

only the electrons in the nucleus

c)

only the electrons in the first level

d)

only the electrons in the outer level

40.

Which of the following is an inert gas?

a)

Hydrogen

b)

Helium

c)

Oxygen

d)

Carbon dioxide

41.
As you move down the first group, reactivity _________.
a)
Increases
b)
Decreases
c)
Stays the same
d)
They are all inert
42.

Elements of the same ______________ have the same number of valence electrons, which determines the elements chemical properties.

a)

Period

b)

Row

c)

Group

43.

Group 1: These metals are extremely reactive. They all have one valence electron. They are shiny and silver in color. They are soft and can be cut with a knife.

a)

Transition Metals

b)

Alkali Metals

c)

Alkaline Metals

d)

Lanthanides

44.

Group 17: All nonmetals. Very reactive. Poor conductors of heat and electricity. Tend to form salts with metals. Example NaCl: sodium chloride which is known as table salt. These elemtns have 7 valence electrons (Group # minus 10).

a)

Boron Group

b)

Oxygen Group

c)

Nitrogen Group

d)

Halogens

45.

Group 18: Unreactive nonmetals. All are colorless, odorless gases at room temperature. These elements have a full outer energy level, usually 8 valence electrons, except for Helium which only has 2 valence electrons.

a)

Nitrogen Group

b)

Oxygen Group

c)

Noble Gases

d)

Halogens

46.
Which of these is not a noble gas?
a)
Helium
b)
Argon
c)
Nitrogen
d)
Krypton
47.

6.15: Which of these is not a property of noble gases?

a)

Colourless

b)

Odourless

c)

Flammable

d)

Gas at room temperature

48.
True or false: Noble gases react with water
a)
True
b)
False
49.
Name the group that contains inert (nonreactive) elements.
a)
noble gases
b)
halogens
c)
alkali metals
d)
alkaline earth metals
50.
________ are the COLUMNS on the periodic table and are organized by similar properties.
a)
Classifications
b)
Groups
c)
Periods
d)
Elements
51.
a)
Alkali
b)
Alkaline
c)
Halogen
d)
Noble Gases
52.
Another term for being chemically inactive is...
a)
Inert
b)
Inbert
c)
Insert
d)
Inmert
53.

Two statements about argon are given.

1 Argon has a full outer shell of electrons.

2 Argon is very reactive and is used in lamps.

Which is correct?

a)

Both statements are correct and statement 2 explains statement 1.

b)

Both statements are correct but statement 2 does not explain statement 1.

c)

Statement 1 is correct but statement 2 is incorrect.

d)

Statement 2 is correct but statement 1 is incorrect.

54.
At room temperature, iodine is a....
a)
Gas
b)
Liquid
c)
Solid
55.

Which of the "Halogens" is found in liquid state at room temperature?

a)

Flourine

b)

Chlorine

c)

Iodine

d)

Bromine

56.

As you move down the group, halogens' reactivity...

a)

increases

b)

decreases

c)

doesn't change

d)

shows no trend.

57.

How many electrons do the halogens all have in their outer shells?

a)

1

b)

2

c)

7

d)

8

58.

Which halogens are gases?

a)

iodine

b)

fluorine

c)

bromine

d)

chlorine

59.

Which halogen is the most reactive?

a)

iodine

b)

chlorine

c)

bromine

d)

fluorine

60.

Which halogen is the least reactive?

a)

iodine

b)

chlorine

c)

bromine

d)

fluorine

61.

Which halogen has the biggest atoms?

a)

iodine

b)

chlorine

c)

bromine

d)

fluorine

62.

Halogens have _________ electrons in their outermost shell.

a)

2

b)

7

c)

8

d)

18

63.

How many electrons are in the outer shell of group 17 elements?

a)

6

b)

7

c)

8

d)

9

64.

Reactivity of halogen decreases going down the group because

a)

The 8th electron difficult to attract by nucleus

b)

Atomic size decreases down the group

c)

Electrons are closer to the nucleus

d)

Screening effect decreases

65.

As you move down the group, halogens' reactivity...

a)

increases

b)

decreases

c)

doesn't change

d)

shows no trend.

66.

Which Halogen is the most reactive?

a)

Bromine

b)

Fluorine

c)

Iodine

d)

Chlorine

67.

Which Halogen has the lowest melting point?

a)

Fluorine

b)

Bromine

c)

Iodine

d)

Chlorine

68.
Alkali metals are found in which group of the periodic table?
a)
Group 1
b)
Group 2
c)
Group 7
d)
group 8 
69.
Which of the following is the most reactive in water?
a)
Lithium
b)
Sodium
c)
Potassium
70.

Melting point (a)   as you go down the group of Group 1 elements

71.

What name is given to elements in Group 7 on the periodic table?

a)

Alkali metals

b)

Halogens

c)

Alkali Earth Metals

d)

Metalloids

72.

As you move down the group, halogens' reactivity...

a)

increases

b)

decreases

c)

doesn't change

d)

shows no trend.

73.

The melting and boiling point increases as you go down group 7

a)

true

b)

false

74.

Select all physical properties for alkali metals

a)

shiny

b)

conducts electricity

c)

reactive

d)

soft

e)

conducts electricity

75.

Select all chemical properties of noble gases

a)

they are all colorless

b)

they are all gasses

c)

they are odorless

d)

they are unreactive (inert)

e)

they have a strong odor

76.

What is a chemical property for halogens

a)

The are very reactive

b)

They are odorless

c)

They are dull

d)

They are gasses

77.

How many electrons can go in the 2nd energy level / 2nd ring?

a)

2

b)

4

c)

8

d)

12

78.

What is the correct electronic structure for Potassium?

a)

2,8,8,8

b)

2,8,9

c)

2,8,8

d)

2,8,8,1

79.

What is the correct electronic structure for Sodium?

a)

2,8,1

b)

2,6,3

c)

2,8

d)

8,3

80.

What is the correct electronic structure for carbon?

a)

6

b)

2,4

c)

2,8

d)

4,2

81.

What is the correct electronic structure for lithium?

a)

3

b)

1,2

c)

0,3

d)

2,1

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