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Unit 5: Quiz 1

Total questions: 25

Worksheet time: 22mins

Name
Class
Date
1.

Match the following

a)

Proton

1.

1 AMU, Positive charge

b)

Neutron

2.

1 AMU, No Charge

c)

Electron

3.

1/2000 AMU, Negative Charge

2.

Most of the mass of an atom comes from the ​ (a)  

Choose from the below words
nucleus
Only protons
Only Neutrons
Electron cloud
3.

Neutrons + Protons = _________

a)

Atomic Number

b)

Atomic Mass

c)

Electrons

d)

Element

4.

How many neutrons does Boron have?

a)

5

b)

6

c)

10

d)

11

5.

Match the following.

a)

Proton

1.

Positive (+)

b)

Electron

2.

Negative (-)

c)

Neutron

3.

Neutral (0)

6.

Which two subatomic particles make up the nucleus of an atom?

a)

Protons and Electrons

b)

Protons and Neutrons

c)

Molecules and Compounds

d)

Neutrons and Electrons

7.
Which of the following determines the type of element that an atom makes?
a)
The size of the nucleus.
b)
The number of protons.
c)
How much the atom weighs.
d)
The number of neutrons.
8.

In a neutral atom,

a)

protons = electrons

b)

protons = neutrons

c)

neutrons = electrons

d)

atomic number = protons

9.
In the modern periodic table elements are arranged by:
a)
atomic mass
b)
atomic number
c)
valence electrons
d)
number of isotopes
10.

The region inside an atom where electrons are likely to be found

a)

Proton

b)

Atom

c)

Cloud

d)

Neutron

11.
Which is a way that a piece of paper can go through a chemical change?
a)
fold the paper in half
b)
soak the paper in water
c)
burn the paper with fire
d)
cut the paper with scissors
12.
Stanley left an ice cube on his kitchen counter. An hour later, Stanley observed that the ice cube melted. Which statement best describes this change?
a)
Ice melting is a physical change because a new substance is created.
b)
Ice melting is a chemical change because a new substance is created.
c)
Ice melting is a chemical change because it may be reversed.
d)
Ice melting is a physical change because it may be reversed.
13.
All of the following are indicators of a chemical reaction except one.  Which one is NOT an indicator that a chemical reaction has taken place?
a)

the production of heat or light

b)

a color change

c)

the production of gas bubbles

d)

the dissolving of one substance in another

14.

Match the following reactions:

a)

Physical change

(Shape)

1.

Cutting paper

b)

Physical change

(solution)

2.

Dissolving

salt

c)

Chemical Change

(Flammability)

3.

Lighting a match

d)

Chemical change

4.

Baking a cake

15.

The atomic number is equal to:

a)

the number of protons

b)

the number of neutrons only

c)

the total number of protons and neutrons

d)

the number of protons, neutrons, and electrons

16.

What changes when an atom becomes an ion?

a)

The number of electrons

b)

The number of protons

c)

The number of neutrons

d)

Both the number of neutrons and electrons

17.

Adding or subtracting neutrons makes the element change into

a)

an ion

b)

a mixture

c)

an isotope

d)

a neutral atom

18.

Match each definition with the correct term

a)

An atom that has lost or gained an electron

1.

Ion

b)

An atom of an element with a different amount of neutrons

2.

Isotope

c)

A positively charged atom

3.

Cation

d)

A negatively charged atom

4.

Anion

19.

Aluminum has an atomic number of 13. What is the atomic mass of aluminum if it has 20 neutrons?

a)

7

b)

27

c)

33

d)

40

20.
What element is this?
a)
Helium
b)
Hydrogen
c)
Argon
d)
Silver
21.

Nitrogen ion has a charge of +3. How many electrons does nitrogen have?

a)

7

b)

14

c)

10

d)

4

22.

3. What electrical charge does nucleus carry?

a)

positive charged (protons) and neutrons (which have no electrical charged)

b)

Just positive charged

c)

Electrons and protons

d)

protons, electrons and neutrons

23.
Two atoms of different elements will definitely have different numbers_____
a)
Nuclei
b)
Protons
c)
Neutrons
d)
Electrons
24.

How many neutrons does a Sodium-24 isotope have?

a)

12

b)

13

c)

14

d)

15

25.

Fluorine has a charge of -1, how many electrons does this ion have?

a)

9

b)

8

c)

10

d)

19

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