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 and generally donot form compounds under normal conditions.
The elements usually react if they have tendency to gain or lose more electrons. For example Sodium has atomic no. 11 and it has the tendency to lose electron in order to complete its octate. But noble gases such as helium have 2 electrons donot have the tendency to gain or lose electrons since its duplete is already complete.
The outer shell of electrons in noble gases is full.
All noble gases don't react with other elements. Noble or inert gases don't react with other elements because their outer electron shells are completely full. However, the heavier noble gases actually can be forced to react with very electronegative elements like oxygen and fluorine. However, they don't do so readily.
They readily form compounds with other elements.
Group 18 elements are called noble gases. They are called noble gases because they are generally unreactive and do not readily form compounds with other elements. Their outermost electron shells are completely filled, which contributes to their stability and lack of reactivity.
Elements in the Periodic Table that are not reactive are called the Noble Gases.
Unlikely other elements in the periodic table, noble gases rarely form compounds with other elements.
All noble gases don't react with other elements. Noble or inert gases don't react with other elements because their outer electron shells are completely full. However, the heavier noble gases actually can be forced to react with very electronegative elements like oxygen and fluorine. However, they don't do so readily.
Generally, those are the elements in Group 18, called the noble gases.
They readily form compounds with other elements.
The Group 18 elements are called the noble gases or sometimes inert gases. Wikipedia has information on the noble gases, and a link is provided.
Group 18 elements are called noble gases. They are called noble gases because they are generally unreactive and do not readily form compounds with other elements. Their outermost electron shells are completely filled, which contributes to their stability and lack of reactivity.
Elements in the Periodic Table that are not reactive are called the Noble Gases.
Unlikely other elements in the periodic table, noble gases rarely form compounds with other elements.
The noble gases.
the noble gases
Noble gases are placed in the group 18 of the periodic table of elements; from about 50 years noble gases are not considered as totally inert elements.
Noble gases.
Noble Gases