Question

Write 18group elements why 18group elements called noble zero group elements and inert gases give explanation of He,Nee,Are,Kr,Xe and RN elements

Answer 1

EXPLANATION:-

The 18th group elements are

• Helium
• Neon
• Argon
• Krypton
• Xenon
• Radon

These 18th group elements are zero group elements, noble gases , inert gases Beacuse They have the stable electronic configuration. that means like metals and non metals they do not gain or lose electrons . So, they donot react with any element and form only few compounds(rare). and the other elements like Sodium, Magnesium, Chlorine etc ..They gain or lose electrons to attain the elctronic configuration of 18th group elements. So, they are called noble zero group elements or inert gases

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Know more :-

Electronic configuration of noble elements:-

Helium - 1s²

Neon - 1s² 2s² 2p⁶

Argon - 1s² 2s² 2p⁶ 3s² 3p⁶

Krypton - 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶

Xenon - 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 5s² 5p⁶

Radon - 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 5s² 5p⁶ 5p¹⁰ 6s² 6p⁶

Atomic number of Helium- 2

Atomic number of Neon - 10

Atomic number of Argon - 18

Atomic number of Krypton - 36

Atomic number of Xenon - 54

Atomic number of Radon - 86

Answer 2

$\large\underline\mathfrak\red{Answer \: :- }$

The 18th group elements are follows :

• helium (He),
• neon (Ne),
• argon (Ar),
• krypton (Kr),
• xenon (Xe),
• radon (Rn),

Why 18group elements called noble zero group elements and inert gases.

The elements of group 0 have stable complete octate configuration. As a result, they do not react with other elements easily, i.e., they have inert behavior. Hence they are also called inert gases.

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Learn more :

Why are the elements of groups and zero are called..

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