Why elements of group 18 known as noble ...

Why elements of group 18 known as noble gases?

Text Solution

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The elements of group 18 have their valence shell orbitals completely filled. As a result, they are fairly unreactive and hence are called noble gases. However, Xe reacts with highly electronegative elements such as oxygen and fluorine under certain conditioons to form oxides, fluorides and oxyfluorides.

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Explore conceptually related problems

(a)Why are the elements of group 18 known we moble gases? (b)Noble gases have very how bulting points why? (c ) Does the hydrogen of XeF_(2) lend in a radus reaction?

The elements of group 17 are known as _____

Knowledge Check

Elements of group 18 are known as noble gases becauses:

A

they were discovered by noble kings of ancient times

B

they were extremely rare in atmosphere

C

their valence shell orbitals are completely filled and therefore, react with a few elements only under certain conditions

D

None of the above

The elements of group 18 are called

A

halogens

B

noble gases

C

chalcogens

D

alkaline earth metals

The elements of group 18 are ______.

A

Halogens

B

Noble gases

C

Metals

D

Alkaline earth metals

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Why are the elements of group 18 called zero valent?

Group 17 elements are known as

VA group elements are known as

___ are the elements of group 18.

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