topic 6- group 0 -periodic table

Explain why the noble gases are chemically inert, compared

with the other elements, in terms of their electronic

configurations

because they have a full outer shell of electrons making them unreactive as they dont gain or lose electrons

Explain how the uses of noble gases depend on their

inertness, low density and/or non-flammability

….

Which noble gas is used in balloons and why?

A: Helium – it is low density and non-flammable, making it safe for lifting.

Why is argon used in welding?

Because it is inert and prevents the hot metal from reacting with oxygen or nitrogen in the air.

What property of noble gases makes them useful in fire suppression systems?

Inertness – they displace oxygen without reacting or burning.

Why are noble gases used in light bulbs?

To stop the filament from reacting with oxygen, which prolongs bulb life.

What happens to the boiling point of noble gases as you go down Group 0?

The boiling point increases.

What happens to the density of noble gases as you go down Group 0?

The atomic mass increases.

What happens to the atomic mass of noble gases as you go down Group 0?

The atomic mass increases.

Why does the boiling point increase down the group in noble gases?

Because the atoms are larger and intermolecular forces become stronger, needing more energy to separate them.

How can you predict the physical properties of a noble gas lower in the group?

Use the pattern: it will have a higher boiling point, greater density, and larger atomic mass.