Because it is made from only one type of atom

Why are Y and Z compounds?

Contain two or more different elements bonded together

Why can metals be bent and shaped?

Layers can slide over eachother

What is the definition of covalent bonding?

When electrons are shared between atoms

Why are alloys harder than pure metals?

Layers are distorted so layers cannot slide

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C2.1 Revision AQA

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AQA C2.1/C2.2 - Elements, compounds, mixtures, bonding, metallic, ionic, covalent, giant covalent, Chemistry

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Questions 18

Answers

1
Name the ions in sodium chloride
Sodide and Chloride
Chloride and Sodiumide
Sodium & Chloride
Sodium and Chlorine
2
What has to happen to Calcium to become an ion?
Gains 2 electrons
Gains 2 protons
Loses 2 protons
Loses 2 electrons
3
Why is X an element?
Because it has just one atom
Because it is made from only one type of atom
Because it is a mixture of elements
It has two or more different elements bonded together
4
Which image represents an element?
W
Z
X
Y
5
Which of these is another property of ionic compounds?
Conducts sound
Soluble in water
Cannot conduct electricity
Dissolves in water
6
Why are Y and Z compounds?
Mixture of different elements
Made of only one type of atom
Contain two or more different elements bonded together
two different atoms
7
Which of these images shows ionic bonding
B
C
A
D
8
Which of these is a property of ionic compounds?
Conducts sound
Insoluble in water
Dissolves in water
Cannot conduct electricity
9
Why can metals be bent and shaped?
Because humans are very strong
Because they are soft
Because there are weak intermolecular forces
Layers can slide over eachother
10
Which image represents an alloy?
B
D
C
A
11
What is the definition of covalent bonding?
When protons are gained
When electrons are lost/gained
When electrons are shared between atoms
When one atom donates electrons to another
12
Which of these is a compound?
W
X
Z
Y
13
Which image represents metallic bonding?
A
D
B
C
14
Which of these is a desirable quality of a metal used in a bridge?
High reactivity
Low reactivity
Low melting point
Bends easily
15
Which of these is another property of ionic compounds?
Soluble in water
Conducts electricity
Conducts sound
Dissolves in water
16
Ions are made when atoms....
lose or gain protons
gain neutrons
lose atoms
lose or gain electrons
17
Why are alloys harder than pure metals?
Layers can slide easier because layers are distorted
There is a stronger force between atoms
I didn't listen when we covered this.
Layers are distorted so layers cannot slide
18
Which of these images shows covalent bonding
B
C
D
A

C2.1 Revision AQA Flashcards | StudBud