The location of electrons in an atom defines the reactivity of the atom. The number of electrons that is found in the outermost shell defines its reactivity.
The tendency of an atom to take part in a chemical reaction is defined as reactivity.
Noble gases have low reactivity because they have valence electrons in the outermost shell.
The atoms that have not completed their octet are not stable and have high reactivity. Example: chlorine , fluorine
These are type of White blood cells W.B.C ,present almost 2% of white cells . About twice the size of red blood cells , Nucleus is bi lobed . They are often used for parasite attack , Inactivate inflammation and production of substances .
