Ionic compounds have...

...high boiling and melting points

Giant covalent compounds have...

...high boiling and melting points

Shared pair of electrons between non-metals...

bonding in simple covalent compounds, bonding in giant covalent compounds

Simple covalent compounds have...

...low boiling and melting points

Why does reactivity increase as you go down group 1 in the periodic table?

The number of shells increases..

soft metals with low melting points

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C2 Topic 4 Groups in the periodic table

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Edexcel GCSE Additional Science

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Questions 20

Answers

1
Lithium, sodium and potassium react with water to form...
...oxides and carbon dioxide
...hydroxides and hydrogen gas
...hydroxides and carbon dioxide
...carbonates and hydrogen gas
2
Ionic compounds have...
...low boiling and melting points
...high boiling but low melting points
...low boiling but high melting points
...high boiling and melting points
3
What state is bromine at room temperature?
Solid
Gas
Liquid
4
State the colour of iodine.
red-brown
purple
pale yellow
yellow-green
5
A regular arrangement of positive ions surrounded by a sea of delocalised electrons describes:
covalent compounds
ionic compounds
metals
liquids
6
What state is chlorine at room temperature?
Gas
Liquid
Solid
7
A sea of delocalised electrons describes...
bonding in ionic compounds
bonding in simple covalent compounds
bonding in metallic structures
bonding in giant covalent compounds
8
Giant covalent compounds have...
...high boiling and melting points
...low boiling but high melting points
...high boiling but low melting points
...low boiling and melting points
9
Shared pair of electrons between non-metals...
bonding in simple covalent compounds
bonding in giant covalent compounds
bonding in ionic compounds
bonding in metallic structures
10
In which group of the periodic table do you find the noble gases?
Group 1
Group 7
Group 0
Group 2
11
Ions form joining a metal and non metal describes...
bonding in simple covalent compounds
bonding in giant covalent compounds
bonding in ionic compounds
bonding in metallic structures
12
Which group in the periodic table do you find akali metals?
Group 0
Group 1
Group 2
Group 7
13
Simple covalent compounds have...
...high boiling but low melting points
...high boiling and melting points
...low boiling and melting points
...low boiling but high melting points
14
State the colour of bromine.
purple
yellow-green
pale yellow
red-brown
15
Why does reactivity increase as you go down group 1 in the periodic table?
They have different densities...
The mass of the atoms increases...
The number of shells increases..
The number of electrons in the outer shell changes...
16
Alkali metals are...
soft metals with high melting points
soft metals with low melting points
hard metals with high melting points
hard metals with low melting points
17
How does the reactivity change as you go from lithium to sodium and potassium?
They become more reactive
There is no change in reactivity
They become less reactive
18
What state is iodine at room temperature?
Gas
Liquid
Solid
19
In which group of the periodic table do you find the halogens?
Group 7
Group 1
Group 2
Group 0
20
State the colour of chlorine.
pale yellow
purple
red-brown
yellow-green

C2 Topic 4 Groups in the periodic table Flashcards | StudBud