Question

write the name and symbol of the element from the description.
The noble gas with the smallest atomic radius.

Answer 1

we will firstly discuss the noble gas and its various properties and further how the size of the atomic radius gets changed when we move in a periodic table.

Complete step-by-step answer: Here we should firstly discuss the noble gases. As we know that noble gases are also called the inert gases. Also, we know that they occupy the eighteenth group in the periodic table. This is so because there is no unpaired electron left in the outermost shell either it is completely filled or completely empty. discussing more on this we come to know that they are colourless and odourless gases which react only and only under certain standard conditions. There are basically six occurring noble gases which are considered to be the noble gases as they show properties of that of noble gases. So here we will discuss the question being asked and that noble gas with the smallest atomic radius is helium. Helium is found in the eighteenth group only and we should know that the atomic radius decreases from left to right because of the effective nuclear charge. Also it is one of the noble gas that is abundant in the universe. Further we come to know that it is one with the lowest boiling point.

Note: we must know that the helium has a very wide application in different activities like it is used as a lifting gas in balloons and airships. And as we know that nowadays it is a very well known game that inhaling this gas changes the quality of the voice.