Why are noble gases located on the periodic table?

Answer 1

• The outer most shell contains eight electrons which is known as octate.(exceptional case : Helium which contains two electrons in its valence shell. Thus, it is known as Duplet)
• Nobel gases show similar chemical properties as the no. of electrons in the outermost shell is same. Hence they have similar chemical properties
• Their valency is 0

Answer 2

Noble gases have completely filled orbitals / energy levels. They generally have 8 valence electrons (helium has only 2) and have stable electronic configuration. Hence they are chemically inert, generally donot form compounds under normal conditions and unique.

Answer 3

The noble gases are placed in a separate group in the periodic table because they are extremely non-reactive. They can occur in nature by themselves and don't need another element to stabilize them. Thus they fit into a different category to the other non-metals.

Answer 4

pois seguem a regra do octeto, ou seja, tem 8 elétrons na ultima camada, e são estáveis, isto é, por terem 8 elétrons na camada de Velência não reagem com outros elementos, - se isso acontece desconheço.

espero ter ajudado!

Answer 5

They are in group 18 on the Periodic Table, meaning they have 8 valence electrons. This is a stable configuration, so these atoms are least likely to react.

Answer 6

The noble gases have full valence electron shells, which means that they do not react much with other elements because they aren't "looking" for electrons.

Answer 7

noble gases are generally chemically inert due to the presence of completely filled orbitals

Answer 8

Because they are elements.