Question

Group 18 (or zero group) elements are also called as:
2) Rare gases
3) Noble gases
4) Inactive gases
1) Inert gases​

Answer 1

Answer:

Group 18 will have 8 electrons or completely filled configuration in their valence shell. They are called as either inert gases or noble gases. They are also called zero group elements as they have zero electron affinity that is zero tendency in accepting electrons as they already have stability.

Explanation:

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Answer 2

Explanation:

Group 18 (or zero group) elements are also called as:

1) Inert gases ✔

2) Rare gases

3) Noble gases ✔

4) Inactive gases

Additional information :-

Group 18 consists of 6 elements :-

1. Helium (He)
2. Neon (Ne)
3. Argon (Ar)
4. Krypton (Kr)
5. Xenon (Xe)
6. Radon (Ra)

• All these are gases and almost completely inert hence, the element of this group are called inert gases.
• They form very few compounds, that's why, these are termed as noble gas.

Uses of Noble gases :-

1. Helium is used in filling balloons.
2. Neon bulbs are used in botanical garden and in greenhouses.
3. Argon is used in rectifiers and in valves.
4. Krypton is used in high efficiency miners helmet lamps.