Group 0 Properties and Trends Flashcards

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What name is given to the elements in Group 0 of the periodic table?

The elements in Group 0 are called the noble gases (or inert gases).

Where is Group 0 found on the periodic table?

Group 0 is the far right-hand vertical column of the periodic table.

Why are Group 0 elements very unreactive?

Group 0 elements are very unreactive because each atom has a full outer shell of electrons, which is very stable.

What does "monatomic" mean, and are Group 0 elements monatomic?

Monatomic means made of single atoms, not joined in molecules. Noble gases are monatomic.

What are the physical state and colour of Group 0 elements at room temperature?

At room temperature, all Group 0 elements are colourless gases.

How do the boiling points of the noble gases change as you go down Group 0?

The boiling points of the noble gases increase as you go down Group 0; helium has a very low boiling point and xenon has a higher one.

How does the density of the noble gases change as you go down Group 0?

The density of the noble gases increases as you go down Group 0; the atoms get heavier so the gases become denser.

Why is helium used to fill party balloons and airships instead of hydrogen?

Helium is used because it is less dense than air and is not flammable, so it is safer than hydrogen.

Why is argon used in filament lamps and in welding?

Argon is used because it is unreactive, so the hot metal or filament does not burn or react with oxygen.

If a new element is discovered below xenon in Group 0, what would you predict about its boiling point compared with xenon?

It would be expected to have a higher boiling point than xenon, because boiling points increase as you go down Group 0.