Helium,neon,argon
Another name for noble gases is inert gases.
Elements of Group 18 may be called as;1-Noble gases 2-Rare gases 3- Inert gases
Chemical nitrogen 1 it is pure as it does not have any inert gases. 2 it is lighter compared to atmospheric nitrogen. 3 it is highly reactive. Atmospheric nitrogen 1 it has 1% inert gases. 2 it is heavier than chemical nitrogen due to the dust particles. 3 it is less reactive because of the inert gases.
All noble gases are colorless, odorless, and tasteless at room temperature. They are chemically inert due to having a full valence electron shell, which makes them unlikely to form compounds with other elements. Additionally, noble gases have low boiling and melting points compared to other elements, and they exist as monoatomic gases under standard conditions.
Although there are many common gases that inert under most common conditions, the only ones that are inert under nearly all conditions are the noble gases. As an example - nitrogen is usually inert, but when subject to the conditions in an internal combustion engine, it will react to form a range of nitrogen-oxides.The noble gases - helium, neon, argon, krypton, xenon, and radon - are extremely non-reactive. Until the 1960's it was thought to be impossible to get them to react with anything because their oxidation number is 0. In the past 50 years a few compounds have been formed under very specially crafted conditions using highly oxidizing atoms like fluorine, but most of them are not even very stable.With that said - the highest atomic number for an inert gas is that for radon - which has an atomic number of 86 and an average atomic weight of 222 amu.Ununoctium (proposed name Oganesson) - with an atomic number of 118 and standard atomic weight of 294 is in Group 18 with the noble gases, but is predicted to be a solid due to relativistic effects: most of its properties can only be predictedbecause only 3 and possibly 4 atoms of this highly radioactive man-made element have ever been synthesized.
Another name for noble gases is inert gases.
Noble gases are also known as, 1- inert gases 2- rare gases 3- monoatomic gases 4- zero group elements.
Elements of Group 18 may be called as;1-Noble gases 2-Rare gases 3- Inert gases
hydrogen-gas helium-inert gas lithium-atomic no.3
liquid;vapour and ice
All the Noble/Inert gasses. However, Helium (He) has a complete outer shell of only TWO(2) electrons. The other noble gases all have a complete octet (outer) shall, of EIGHT(8) (Octet) electrons.
Solids-Rocks,Wood,Plastics............... Liquids-Water Gases-CO2.O2..................................
These examples are: rubidium-87, sodium-23, and lithium-7 as very low density gases at extremely low temperature.
Chemical nitrogen 1 it is pure as it does not have any inert gases. 2 it is lighter compared to atmospheric nitrogen. 3 it is highly reactive. Atmospheric nitrogen 1 it has 1% inert gases. 2 it is heavier than chemical nitrogen due to the dust particles. 3 it is less reactive because of the inert gases.
1. relatively nonreactive 2. little tendency to gain or lose electrons 3. high ionization energies and negligible electronegativities 4. have low boiling points
All noble gases are colorless, odorless, and tasteless at room temperature. They are chemically inert due to having a full valence electron shell, which makes them unlikely to form compounds with other elements. Additionally, noble gases have low boiling and melting points compared to other elements, and they exist as monoatomic gases under standard conditions.
Examples of air matter include oxygen, nitrogen, and carbon dioxide. These are all gases that make up the composition of the Earth's atmosphere.