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Worksheets

Chemistry

Total questions: 39

Worksheet time: 31mins

Name
Class
Date
1.

the basic structural unit of matter

a)

atom

b)

matter

c)

element

d)

nucleus

2.

the positively charged subatomic particle contained in the nucleus of an atom

a)

proton

b)

neutron

c)

electron

d)

matter

3.

a subatomic particle, contained in the nucleus of an atom, having the same mass as a proton but no electrical charge

a)

proton

b)

neutron

c)

electron

d)

matter

4.

a negatively charged subatomic particle that orbits the nucleus of an atom

a)

proton

b)

neutron

c)

electron

d)

matter

5.

an arrangement of the elements according to their atomic numbers so that elements with similar properties are in the same column and properties repeat from row to row

a)

Periodic Table of Elements

b)

Atomic Theory

c)

Isotopes

d)

Subatomic Particles

6.

a unique number for each element that equals the number of protons in an atom of that element

a)

element name

b)

element symbol

c)

atomic number

d)

atomic mass

7.

the mass of an atom, calculated by adding the number of protons and neutrons in the nucleus of the atom

a)

element name

b)

element symbol

c)

atomic number

d)

atomic mass

8.

a grouping of elements based on similar properties, arranged by columns in the periodic table; also known as a group

a)

family

b)

period

c)

row

d)

isotope

9.

one of several forms of a single element, which contains the same number of protons, but different numbers of neutrons

a)

isotope

b)

ion

c)

orbital

d)

nucleus

10.

an atom or group of atoms that has gained or lost one or more electrons and is now either positively or negatively charged

a)

isotope

b)

ion

c)

orbital

d)

nucleus

11.
Which is an alkali metal?
a)
Magnesium
b)
Iron
c)
Sodium
d)
Europium
12.
If an atom had the same properties as fluorine (F), it would probably be located in
a)
period 1.
b)
period 2.
c)
group 2.
d)
group 17.
13.
What is the element symbol for boron? 
a)
B
b)
Bo
c)
Bn
d)
W
14.
The atomic number of this pictured element is
a)
28
b)
58.6934
c)
Ni
d)
Nickel
15.
What is the atomic mass of Neon?
a)
10
b)
30
c)
10.18
d)
20.18
16.
Who first developed the Periodic Table?
a)
Mendeleev
b)
Mosely
c)
Mendella
d)
Murphy
17.
What is the formula to solve for the neutron?
a)
Mass + Atomic Number= Neutrons
b)
Mass x Atomic Number = Neutrons
c)
Mass - Atomic Number = Neutrons
d)
Mass + Number of Protons = Neutron
18.

Why do elements bond?

a)

To be friends

b)

To create a new element

c)

To become stable

d)

To get bigger

19.
What is a valence electron?
a)
The sum of neutrons and protons.
b)
The # of electrons in the last shell.
c)
A type of bond.
d)
A popular compound.
20.

Which of these is not a real bond in chemistry?

a)

James

b)

Ionic

c)

Covalent

d)

Metallic

21.
If an atom loses two electrons what charge will it have?
a)
-2
b)
-1
c)
+1
d)
+2
22.

Which of the following describes covalent bonds?

a)

Bonds form because of opposite charges

b)

electrons are shared to fill outer electron shells

c)

Electrons are transferred between atoms

d)

Covalent bonds are magical

23.

Chemical bond is ...

a)

the physical mixing of two different atoms.

b)

the force that holds two atoms together

c)

the energy used up when two atoms combined.

d)

the temperature that changes the phase of matter.

24.

Which of the following atoms is most likely to bond with another atom?

a)
b)
c)
d)
25.

How many valence electrons does Oxygen (O) have?

a)

6

b)

8

c)

15

d)

16

26.

How many dots would you put around carbon, a group 14 element?

a)

4

b)

6

c)

8

d)

18

27.

This is a correct dot diagram for neon (Ne)

a)

true

b)

false

28.
This is the correct dot diagram for nitrogen, group 15.
a)
true
b)
false
29.

How many electrons should sodium, atomic number 11, have around its Lewis dot model?

a)

1

b)

2

c)

3

d)

4

30.
How many atoms of carbon (C) are in C6H12O6?
a)
3
b)
6
c)
12
d)
24
31.

A substance that is formed as the result of a chemical reaction is a __________________

a)

Product

b)

Reactant

c)

Starters

d)

Enders

32.
In a ___________change, a substance changes into a different substance.
a)
Physical
b)
Chemical
33.
In a chemical reaction, bonds are broken and new bonds are formed that create new substances. The bonds that are broken are called what?
a)
Reactants
b)
Products
c)
Atoms
d)
Catalysts
34.
A common synthetic material that is found almost everywhere is ________.
a)
Coal
b)
Lumber
c)
Plastic
d)
Aerogel
35.
When two substances combine to form a new substance, a _____ has occurred.
a)
chemical reaction
b)
physical reaction
c)
mixture
d)
solution
36.
_______ is an example of a synthetic fabric.
a)
Wool
b)
Silk
c)
Cotton
d)
Nylon
37.
Synthetic materials are made by _________.
a)
aliens
b)
humans
c)
farmers
d)
nature
38.
What is the difference between a natural and synthetic material?
a)
Natural material is made from chemicals and synthetic is made from nature
b)
Natural material is made directly from nature and synthetic material is made from chemicals
c)
Natural material is made from petroleum and synthetic material is made from wool
d)
Natural material is made from trees and synthetic materials are made from plastics
39.

What is a synthetic material?

a)

Any material that is man made

b)

Any material that is only made from natural resources

c)

Any material that is made of recycled materials

d)

Any material that is found in nature.

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