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Review Unit 2

Total questions: 45

Worksheet time: 37mins

Name
Class
Date
1.
What is atomic number?
a)
Number of protons in an atoms 
b)
Number of neutrons in an atom
c)
Mass of an atom
d)
Charge on an atom
2.
Which subatomic particles are found in the nucleus of an atom?
a)
Protons and Electrons
b)
Protons and Neutrons
c)
Neutrons and Electrons
d)
Protons, Neutrons and Electrons
3.
What electrical charge does a proton have?
a)
+1
b)
0
c)
-1
d)
+2
4.
What mass does a neutron have?
a)
1
b)
0
c)
-1
d)
+2
5.
The total number of protons and neutrons in an atom is called the...
a)
Atomic number
b)
Proton number
c)
Mass number
d)
Weight number
6.
Complete the missing label on the diagram.
a)
Neutron
b)
Centre
c)
Nucleus
d)
Sub atomic particle
7.
The mass number of an element that has18 protons, 18 electrons, and 19 neutrons is _____.
a)
12.5
b)
13
c)
25
d)
37
8.
The atomic number of an element that has 9 protons, 9 electrons, and 10 neutrons is _____.
a)
9
b)
10
c)
19
d)
28
9.

What element is represented in this Bohr Model?

a)

Carbon

b)

Hydrogen

c)

Aluminum

d)

Lithium

10.

Which subatomic particle is negatively charged?

a)

proton

b)

atom

c)

neutron

d)

electron

11.

Where are the Electrons found in the structure of an atom?

a)

In the nucleus

b)

In orbits/levels around the nucleus

12.
The subatomic particles in green are...
a)
Protons
b)
Neutrons
c)
Electrons
13.
How many electron shells/levels does this atom have?
a)
1
b)
2
c)
3
d)
4
14.
How many electrons does this picture show?
a)
4
b)
5
c)
6
d)
3
15.
subatomic particles found on the outermost shell & responsible for the atom's reactivity
a)
neutrons
b)
valence electrons
c)
isotopes
d)
ions
16.
Arrangement of elements organized by atomic number
a)
Electron Cloud 
b)
Periodic Table 
c)
Electron Configuration
d)
None of these
17.
DIFFERENT kinds of atoms chemically combined to form a substance are
a)
Mixture
b)
Element
c)
Compound
d)
Substance
18.

Which subatomic particle determines the charge of an atom?

a)

protons

b)

neutrons

c)

electrons

19.

The electron is not included in the calculations for the atomic mass because

a)

It has negative charge

b)

It is located in the outer energy levels of the atom

c)

Its mass is basically zero

d)

It attracts neutral particles

20.
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
21.
Atoms are neutral because they have the same number of
a)
protons and neutrons
b)
protons and electrons
c)
electrons and neutrons
22.

Which is the correct bohr model for Aluminum?

a)
b)
c)
d)
23.

What element represented in this bohr model?

a)

Oxygen

b)

Sulfur

c)

Chlorine

d)

Fluorine

24.

Based on this diagram, which is correct?

a)

O2-

b)

O

c)

O2+

d)

O1-

25.

Based on the diagram, which is correct?

a)

It's a neutral atom

b)

It's a positive ion

c)

It's a negative ion

26.

Based on the box notation, Which is correct?

a)

17 protons, 17 neutrons, 17 electrons

b)

17 protons, 18 neutrons, 17 electrons

c)

17 protons, 18 neutrons, 18 electrons

d)

18 protons, 18 neutrons, 18 electrons

27.

Based on this box notation information, which is correct?

a)

It's a neutral atom

b)

It's a cation

c)

It's an anion

28.

What is the oxidation number for Magnesium?

a)

2+

b)

1+

c)

0

d)

1-

29.

Which group is highlighted?

a)

Alkali metals

b)

Alkaline earth metals

c)

Halogens

d)

Noble gases

30.

Why are these elements called Noble gases? (2 answers)

a)

all are inert/nonreactive

b)

fulfills the octet rule

c)

they glow

d)

they are very reactive

31.

In box notation, Which is the atomic number?

a)

a

b)

b

c)

c

32.

Based on the element, Which is correct?

a)

a=23, b=11, c=1+

b)

a=11, b=1+, c=23

c)

a=11, b=11, c=0

d)

a=23, b=1+, c=11

33.

Which is NOT a property of metal?

a)

shiny

b)

malleable

c)

conductive

d)

hardness

34.

the ability to hammer into thin sheets

a)

shiny

b)

malleable

c)

conductive

d)

ductile

35.

the ability to pull into wires

a)

shiny

b)

malleable

c)

conductive

d)

ductile

36.

Group 2A are called...

a)

Alkali metals

b)

Alkaline earth metals

c)

Transition metals

d)

Metalloids

37.

Identify the type of elements in the "steps"

a)

Metals

b)

Nonmetals

c)

Metalloids

d)

Halogens

38.

Which group is represented in yellow?

a)

Alkali metals

b)

Alkaline earth metals

c)

Transition metals

d)

Metalloids

39.

Shows a mixture of properties from metals & nonmetals.

a)

Metals

b)

Nonmetals

c)

Metalloids

d)

Transition metals

40.

This atom is...

a)

neutral.

b)

a cation.

c)

an anion.

41.

This atom has an oxidation number of...

a)

0

b)

3+

c)

3-

d)

2-

42.

Identify the element?

a)

Potassium

b)

Magnesium

c)

Fluorine

d)

Nitrogen

43.

Which is correct?

a)

a=39, b=1+

b)

a=9, b=1-

c)

a= 10, b=0

d)

a=23, b=1+

44.

An atom with: protons=35, neutrons=45, electrons=36

a)

Bromine

b)

Bromine ion

c)

Selenium ion

d)

Scandium

45.

An atom with: protons=35, neutrons=45, electrons=36

a)

atomic number=45, mass number=80, charge=1+

b)

atomic number=35, mass number=80, charge=0

c)

atomic number=35, mass number=80, charge=1-

d)

atomic number=80, mass number 45, charge=1-

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