The special property of the Noble gases which makes them unreactive needs to be explained and also the reason of increase of boiling points and melting points of the Noble gas from He to Xe needs to be explained. Concept Introduction: In the Long form of periodic table, the non-metals are mainly placed at the right side of the periodic table that is called as p-block elements. Metals make the 75 % part of the periodic table. Metals are electropositive elements and mainly form ionic compound, whereas non-metals are electronegative elements and can form either covalent or ionic compounds. Noble gases are the elements which are placed in the group-0 of the periodic table at the right most side of the main body of the periodic table.

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Chapter 18, Problem 84E

Interpretation Introduction

Interpretation: The special property of the Noble gases which makes them unreactive needs to be explained and also the reason of increase of boiling points and melting points of the Noble gas from He to Xe needs to be explained.

Concept Introduction:

In the Long form of periodic table, the non-metals are mainly placed at the right side of the periodic table that is called as p-block elements.

Metals make the 75 % part of the periodic table. Metals are electropositive elements and mainly form ionic compound, whereas non-metals are electronegative elements and can form either covalent or ionic compounds.

Noble gases are the elements which are placed in the group-0 of the periodic table at the right most side of the main body of the periodic table.

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