wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

year 10 chemistry review

Total questions: 29

Worksheet time: 22mins

Name
Class
Date
1.

Which subatomic particles have a +1 charge?

a)

Protons

b)

Neutrons

c)

Electrons

d)

Atoms

2.

What does the atomic number of an element ALWAYS tell you?

a)

How many neutrons there are in the atom

b)

The atomic weight of the atom

c)

How many protons there are in an atom

d)

How reactive an atom is

3.

When does covalent bonding occur?

a)

When metals bond together

b)

When ions bond together

c)

All the time

d)

When non-metals bond together

4.

What does a catalyst do in a chemical reaction?

a)

Increases the yield of product

b)

Increases the rate of reaction

c)

Makes the reaction safer

d)

Makes the reaction cheaper to run

5.

Which of the following does NOT increase the rate of reaction?

a)

Increasing Temperatire

b)

Increasing Surface Area

c)

Increasing Size of the Beaker

d)

Increasing Pressure

6.

What is the most correct description of an 'octet' in chemistry?

a)

Eight of anything

b)

The number of electrons an atom needs in its valence shell to be happy

c)

The number of electrons an atom needs in every shell to be happy

d)

The number of electrons every atom should have

7.

Which statement below most accurately describes covalent bonding?

a)

The exchange of electrons

b)

Donation of electrons to a sea of delocalised electrons

c)

The sharing of electrons

d)

The disappearance of electrons

8.

What does atomic mass refer to?

a)

The mass of protons and neutons in an atom

b)

The number of protons in an atom

c)

The mass of protons, electrons and neutrons in an atom

d)

The mass of an atom in grams

9.

Group 1 Metals (The alkali metals) all form an ion with a charge of

a)

+1

b)

+2

c)

-1

d)

-2

10.
What element is Na ?
a)
Sodium
b)
Nanium
c)
Silicon
d)
Nastium
11.
Which of the following is NOT a property of metals?
a)
Malleable
b)
Lustre
c)
Good electrical conductivity
d)
Brittle
12.
Which of the following is not a group 1 metal?
a)
Lithium
b)
Sodium
c)
Potassium
d)
Calcium
13.
Which subatomic particles are located in the nucleus?
a)
Electrons only
b)
Electrons and neutrons
c)
Protons and electrons
d)
Protons and neutrons
14.
Elements in the periodic table ______ in ___________ from the simplest element to the most complex.
a)
increase, atomic number
b)
increase, neutrons
c)
decrease, atomic number
d)
decrease, atomic mass
15.
What is the total number of atoms present in the formula H2SO4 ?
a)
1
b)
3
c)
6
d)
7
16.
An atom has an atomic number of 17. How many electrons would there be on each shell? (From inner to outer shell)
a)
2, 10, 5
b)
8, 8, 1
c)
2, 8, 7
d)
8, 7, 2
17.
How many neutrons does this element have?
a)
10
b)
9
c)
19
d)
0
18.
The majority of an atom's mass exists where?
a)
In the nucleus
b)
In the electron cloud
c)
In the space between the nucleus and the electrons
d)
In the neutrons
19.
What charge does an atom have if it GAINS an electrons?
a)
Positive (+)
b)
Negative (-)
c)
atoms can not gain electrons
20.
Oxygen with a negative two charge is an example of
a)
a cation
b)
an anion
c)
a polar molecule
d)
a nonpolar molecule
21.
An ionic bond is formed between
a)
2 nonmetals
b)
a metal and a nonmetal
c)
2 metals
d)
2 polar molecules
22.
What is the formula for magnesium chloride?
a)
MgCl
b)
Mg2Cl
c)
MgCl2
d)
Mg(ClO3)2
23.

This substance is always only made up of one type of atom:

a)

Compound

b)

Element

c)

Mixture

d)

Molecule

24.

What is the atomic number?

a)

16

b)

8

c)

0

25.

What is the mass number?

a)

12

b)

24

c)

Mg

26.

How many electrons does this element have?

a)

20

b)

10

c)

4

d)

2

27.

Name the compound CuSO4:

a)

copper sulfate

b)

copper sulfide

c)

sodium oxide

d)

calcium carbonate

28.
Which side of a chemical equation is the product side?
a)
Left (before the yields sign)
b)
Right (after the yields sign)
29.
What does the Law of Conservation of Mass state?
a)
Matter cannot be gained or lost in a chemical reaction.
b)
Matter can only be lost in a chemical reaction.
c)
Matter can only be gained in a chemical reaction.
d)
Matter can be gained and lost in a chemical reaction.