Question

write 5 points of reactivity siries

Answer 1

REACTIVITY     SERIES ⇒

                        Basically, it refer to the list of reactive elements with  respect to their level of unsuitability.  

1. It is being listed from highest element reactive element to the lowest ( Top ↑ to bottom ↓) .
2. Usually , their reactivity is test by  reacting  this metals with "ACID" , "WATER" and "DISPLACEMENT REACTION" .
3. Starting from top ↑of the reactivity series  metals like :- Cs , Fr , Rb , K , Na , Li , Ba , Ra , Sr and Ca .  Are highly reactive elements that reacts with "COLD WATER" along with "ACIDS " and "STEAM" .
4. After Ca , elements like :- Mg , Be , Al , Ti , Mn , Zn , Cr , Fe , Cd , Co , Ni , Sn and Pb . Are less reactive elements which reacts with "STEAM" and "ACID".
5. coming to the bottom ↓ of the series , elements having least reactive nature only reacts with any "STRONG OXIDIZING ACID" and these elements are :- Sb , Bi , Cu , W , Hg , Ag , Au and Pt .

NOTE :- Reactive nature of the element ∝ $1/2$ of it's stability that means "STABILITY < REACTIVE NATURE" } of any element .