WorksheetsElements in Group 18
Total questions: 10
Worksheet time: 3mins
What are the special name given to elements in Group 18? (Multiple choose)
Noble gases
Inert gases
Peace gases
Unreactive gases
Which of the following physical properties describe Group 18 elements?
Group 18 elements generally exists as liquid in room temperature.
Group 18 elements generally has high melting point.
Group 18 elements are reactive towards oxygen gas, O2.
Group 18 elements generally has low boiling point.
As going down Group 18, the atomic size of the atom ______.
Increases
Decreases
Remain the same
Noble gases do not undergo chemical changes even though high heat energy is supplied. Which of the following best describe this statement?
Noble gases generally exist as solid in room conditions.
Noble gases have achieved a stable octet electron arrangement.
Noble gases have low boiling point.
The attractive forces between atoms is very strong.
Which of the following is not a noble gas?
Helium, He
Radon, Rn
Nickel, Ni
Xenon, Xe
Which of the following pairs are incorrect?
Argon - used to treat cancer
Neon - used in advertising board lights
Helium - used to fill weather balloons
Xenon - used for lighthouse lamps
The following shows the information about element Y.
-Achieved stable octet electron arrangement
-Used in lasers for eye retina treatment
Identify element Y.
Helium
Uranium
Krypton
Cobalt
Which of the following gases is filled in the light tube above?
Hydrogen
Oxygen
Nitrogen
Neon
Which of the following comparison is correct about helium, He and argon, Ar?
The melting point of helium is higher than argon.
Argon has more filled electron shells than helium.
Helium have stable octet electron arrangement while argon have stable duplet electron arrangement.
One mole of helium is heavier than one mole of argon.
Which of the following atomic structure belongs to Group 18?
