Argon Gas: Overview, Questions, Preparation

This chapter has multiple topics listed below:

Periodic Table Elements Hypochlorous Acid Percentage of Oxygen in air CO Structure Argon Gas Barium Hydroxide Uses of Ammonia Uses of Nitric Acid Sulfurous Acid Uses of Sulphuric Acid Sodium Borate Radon Uses Difference between Nitrate and ...

Yamini Saini

Updated on Apr 27, 2021 01:29 IST

Introduction

Argon is one of the noble gases. It is a vapour that is colourless and odourless and is inert to most compounds. Argon is named for 'lazy' from the Greek term, representing how unreactive it is, producing relatively few compounds. This gas is a chemical element with the Ar sign and the 18th atomic number and is the third most common gas in the atmosphere (and the most abundant in the crust).

Table of Contents

Uses Of Argon Gas
Properties of Argon
FAQs on Argon Gas

Uses Of Argon Gas

Where an inert atmosphere is desired, argon is used.

Argon is used to produce titanium and other elements with reactive nature in this manner.
Argon gas is also used by welders to shield the region of the weld and to prevent oxygen from eating away the filament in incandescent light bulbs.
In fluorescent tubes and light bulbs with low energies, argon is used. Argon and mercury are present in a low-energy light bulb. An electric discharge moves through the gas as it is turned on, producing UV light.
Argon is used to fill the gap in the pane and double-glazed window.
To shield the rubber and decrease road noise, the tires of luxury cars contain argon.

Properties of Argon

Argon Property	Value
Atomic Number	18
Melting Point	-189°C
Boiling Point	-185.7°C
Density	0.001
Relative Atomic Mass	39.948

Argon Gas in Class 12:

Inert gases are not anywhere in the textbook in much detail. Although under the chapter p-block element, there is a basic study of argon. You will get to learn about how it's formed and the properties of argon and other inert gases.

Illustrated Examples

Why do noble gases have comparatively large atomic sizes?

The real reason why noble gases have relatively large atomic sizes is that all the orbitals are filled. This implies they have an s2p6 structure, and thus interelectronic repulsions maximally result in not forming molecules.

Why is argon purple?

It glows in a violet colour when it is excited by a high voltage electric field.

Why is argon a cheap noble gas?

It is used as a shielding gas in arc welding since argon is stable and a weak heat conductor. As other nonreactive components become reactive, argon is used. Of all the noble gases, argon is the cheapest. Argon displaces oxygen to help preserve items.

FAQs on Argon Gas

Q. What are the properties of argon?

A. Argon has roughly the same solubility as O 2 and is 2.5 times more soluble than nitrogen in the water. In both its liquid and gaseous forms, argon is a chemically inert element that is odourless and colourless in nature.

Q. Why is argon so expensive?

A. Argon (like helium) is a noble gas, meaning it is completely inert. With any other substance, argon will not react readily. Argon is many times more expensive than nitrogen since it is such a small percentage of the atmosphere.

Q. Can humans breathe argon?

A. With the use of suit inflation gas as an emergency breathing gas, there are many problems. Argon is a very narcotic gas, which means that it can be inhaled only at comparatively shallow depths above 20 meters (66 ft).

Q. Can you get killed by argon gas?

A. Argon is an inert gas, so it's not inherently harmful. However, it is an asphyxiant, which means it will displace the oxygen in the air, which will kill you in sufficient concentration. All you have to do is make sure that the concentration is not too much

Q. How harmful is argon?

A. Argon is in nature non-toxic but is harmful under some conditions. By displacing the oxygen in the air to levels below the needed amount to sustain life, it may act as a basic asphyxiant.