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Worksheetsyear 10 chemistry review
Total questions: 29
Worksheet time: 22mins
Which subatomic particles have a +1 charge?
Protons
Neutrons
Electrons
Atoms
What does the atomic number of an element ALWAYS tell you?
How many neutrons there are in the atom
The atomic weight of the atom
How many protons there are in an atom
How reactive an atom is
When does covalent bonding occur?
When metals bond together
When ions bond together
All the time
When non-metals bond together
What does a catalyst do in a chemical reaction?
Increases the yield of product
Increases the rate of reaction
Makes the reaction safer
Makes the reaction cheaper to run
Which of the following does NOT increase the rate of reaction?
Increasing Temperatire
Increasing Surface Area
Increasing Size of the Beaker
Increasing Pressure
What is the most correct description of an 'octet' in chemistry?
Eight of anything
The number of electrons an atom needs in its valence shell to be happy
The number of electrons an atom needs in every shell to be happy
The number of electrons every atom should have
Which statement below most accurately describes covalent bonding?
The exchange of electrons
Donation of electrons to a sea of delocalised electrons
The sharing of electrons
The disappearance of electrons
What does atomic mass refer to?
The mass of protons and neutons in an atom
The number of protons in an atom
The mass of protons, electrons and neutrons in an atom
The mass of an atom in grams
Group 1 Metals (The alkali metals) all form an ion with a charge of
+1
+2
-1
-2
This substance is always only made up of one type of atom:
Compound
Element
Mixture
Molecule
What is the atomic number?
16
8
0
What is the mass number?
12
24
Mg
How many electrons does this element have?
20
10
4
2
Name the compound CuSO4:
copper sulfate
copper sulfide
sodium oxide
calcium carbonate
