What is group I in the periodic table called?
What is group VII in the periodic table called?
What is group 0 in the periodic table called?
Noble gases are inert because
Helium is used in balloons because
Neon is used in light bulbs because
Argon is used in welding
Periodic table

Sections and elements

Argon | Copper | Transition metals | Potassium | |
|---|---|---|---|---|
1 | ||||
2 | ||||
3 | ||||
4 |
Which two of the following are properties of the alkali metals?
Select the correct option using your knowledge and the information in the table.

boiling point | colour | density | reactivity | |
|---|---|---|---|---|
Argon is used in filament lamps because of its low chemical | ||||
In electric discharge tubes, used for advertisement signs, each noble gas glows with a different | ||||
Helium is used in balloons because it has a low | ||||
Xenon is the noble gas in the list that has the highest |
a | b | c | d | e | |
|---|---|---|---|---|---|
(i) a metal that reacts violently with water | |||||
a noble gas | |||||
a Group 2 metal | |||||
a halogen |
The elements in the Periodic Table are arranged in order of increasing:
Elements in the same group in the Periodic Table have the same number of:
Suggest what property of hydrogen makes it suitable for filling balloons.
Helium is now used instead of hydrogen to fill balloons. State the property of helium that makes it more suitable than hydrogen for filling balloons.
Helium is
Argon has a
Explain which element in the diagram is the least reactive.
State the similarity in the electronic configurations of Na and Rb.
(they both have)
State a physical property of Na that shows it is a metal.
conductor of
(malleable and ductile are also allowed here).
Which equation is balanced?