Question

what is chemical reactivity of element? also write the most or leat rective metals of th rectivity series

Answer 1

Heya friend!
Rajdeep here....

Chemical reactivity of an element is its ease to react chemically with other chemicals or compound to form new substances.

The metal reactivity series is :
K
Na
Ca
Mg
Al
Zn
Fe
Ni
Sn
Pb
H
Cu
Hg
Ag
Au
Pt

The most reactive metal is the metal placed at the top, which is potassium.
The least reactive metal is that which is placed at the bottom, which is Platinum.

Thanks!