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WorksheetsGroup 18
Total questions: 10
Worksheet time: 5mins
These are the elements consist in Group 18 EXCEPT....
potassium.
krypton.
argon.
oganesson.
Group 18 also known as __________ or __________.
noble gases
alkali metals
inert gases
Noble gases are chemically unreactive due to.....
valence shells that are not fully filled with electrons.
valence shells that are fully filled with electrons.
The atoms of noble gases do not DONATE, ACCEPT nor SHARE electrons with the atoms of other elements because.....
have achieve a stable duplet or octet electron arrangement.
have not achieve a stable duplet or octet electron arrangement.
The atoms of noble gases exist as monoatoms.
TRUE
FALSE
Going down the Group 18, the melting point and boiling point of the elements __________.
stay the same.
increases.
decreases.
Going down the Group 18, the atomic size of elements will __________.
decreases.
stay the same.
increases.
What is the uses of helium?
Used to fill the weather balloons.
Used in the oxygen tanks of diver.
Used in flashlight of camera.
Which elements in Group 18 used in advertising board lights?
Argon
Potassium
Krypton
Neon
Krypton is used to treat cancer.
TRUE
FALSE
