Over the time, HIV or human immunodeficiency is a lentivirus
under the retrovirus subgroup has been causing HIV infections and AIDS or
acquired immunodeficiency syndrome in humans. This virus destroys the white
blood cells or the CD4+ cells to be specific which is crucial in the human
immune systems.
The person infected then is less equipped to fight
infections or diseases which will then develop into AIDS.
‘Noble gases’ are least reactive as their outer shells are fully filled with electrons. These do need to share their electrons from outer shells with other elements .
