Why are group 8 elements, in the periodic table, called Noble Gases?

Question

ALSO!
- what % of the atmosphere do they make up?
-And could you name 1 use for each?

Answer 1

The name 'noble gases' is an allusion to the similarly-unreactive noble metals, so called due to their preciousness, resistance to corrosion and long association with the aristocracy.

They are present in the atmosphere in very low concentrations. Argon forms a considerable part (0.93% by volume, 1.29% by mass) of the Earth's atmosphere

One of the most commonly encountered uses of the noble gases in everyday life is in lighting. Argon is often used as a suitable safe and inert atmosphere for the inside of filament light bulbs, and is also used as an inert atmosphere in the synthesis of air and moisture sensitive compounds (as an alternative for nitrogen). Some of the noble gases glow distinctive colors when used inside lighting tubes (neon lights). Helium, due to its nonreactivity (compared to flammable hydrogen) and lightness, is often used in blimps and balloons. Krypton is also used in lasers, and are used by doctors for eye surgery. Argon and Krypton are used as a premium filler gases for high-efficiency dual-pane (and triple pane) windows. Argon is about one-third heavier than nitrogen or dry air, and Krypton is twice as heavy as Argon. They may be used individually or in a mixture. Xenon has a light spectrum that is much wider than neon or krypton and Xenon, with an overall bluish hue that is perceived as being similar to "daylight". It is used in high-intensity aviation approach lights, in high-efficiency incandescent bulbs for automotive and stage lighting uses, in plasma display panels, in operating room and internal examination lighting, and in ultraviolet lasers.

Answer 2

On the new periodic table the Noble gases or inert gases are column 18.
It is thought that they were renamed Noble gases because the nobles sat around and didnt do any work and the inert gases do not react so they do no work.
They make up less than one percent of the atmosphere. They were discovered when we first did fractional distillation of liquid air.
The all are used in places where we do not want reactions.
Helium replaces hydrogen in balloons, after the Hindenberg
Neon is used in neon lights for advertising.
Argon is used inside light bulbs to prevent the filament from burning up.
Xenon is used in strobe lights.
Radon is radioactive and we want to avoid it. People have their homes checked to see if it is present in the basement. It is produced by the degeneration of uranium in rocks.

Answer 3

Group 8 Elements

Answer 4

Elements are grouped according to chemical properties. Noble gases are relatively nonreactive because their shells have a complete valence. **This could be why they are called noble.
They have little tendency to gain or lose electrons. The noble gases have high ionization energies and negligible electronegativities. The noble gases have low boiling points and are all gases at room temperature.

Earth's Atmosphere:

Helium 0.000524%
Neon 0.0182%
Argon 0.93% by volume
Krypton between 0.000108-0.000114%
Xenon 0.1 part per million
Radon - Could not find percentage *exceedingly rare but can be found in the radioactive decay of radium.

Uses:

Helium - Fills balloons

Neon - Lights

Xenon - This gas is most widely and most famously used in light-emitting devices called Xenon flash lamps, which are used in photographic flashes and stroboscopic lamps, to excite the active medium in lasers which then generate coherent light, to produce laser power for inertial confinement fusion.

Argon - Argon is used in incandescent lighting and other applications in which diatomic nitrogen is not sufficiently inert.

Kryton - photographic flashes used in high speed photography

Radon - "radon spas" where people sit for minutes or hours in a high-radon atmosphere in the belief that airborne radiation will invigorate or energize them

Answer 5

they are the noble gases as they do very little chemistry at all.
They used to be called the inert gases but this was changed when xenon was found to react with Flurine.


they make up just under 1% of the air we breath in total with argon being the main one.

Helium - used in airships as it is lighter than air

Neon - used in the red advertising signs

Argon - the gas in the old filament bulbs

Xenon - flash bulbs and strobe lamps

Krypton - used in lasers for eye operations

Radon - radioactive but can be used in radiotherapy

Answer 6

Just as the silver and gold are noble metals, certain gases are also called noble. They are noble because they can't be changed. They are unreactive because their outer electron shells are saturated. This configuration makes for a very stable atom.

Noble metals find uses in the electronics field, and jewelry. Noble gases are used for welding metal, as in MIG and TIG welding.

Answer 7

They are called "noble" because they are mostly unreactive with other elements. They used to be known as "inert" or unreactive.Today, they are known as noble, because they are known to react with Fluorine & Oxygen.
This unreactivity is caused by the outer electron shell of the molecule having its full complement of 8 electrons thus not needing to react with other elements to achieve this.
They make up about 1.5% of the atmosphere, with argon being the most common.
Helium is used to fill floating balloons.
Argon & neon are used in fluorescent lights.
The others.....?

Answer 8

The Periodic table is defined as A tabular arrangement of the elements according to their atomic numbers so that elements with similar properties are in. Periodic means occurring at regular intervals, and as such, the columnar arrangement of the elements is "periodic" in design.

Answer 9

Noble gases: they were considered to be inert. Hence the name noble. (I guess gas you can very well figure out ;) But today there are many noble gas compounds as well.
He: balloons
Ne: laser
Ar: used as protective atmosphere in arc welding
Kr: used in lamps (one of its spectral line is used in the definition of meter...)
Xe: used in lamps (you know: xenon lights - those bright very white lights)
Rn: I don't know much use for it...

Answer 10

They are called noble gases because they have a full outer shell of electrons, and do not react, unless they are ionic