Question

Question No. 17)
As the particle size of nano particles decreases they become highly reactive due to:
Answer
B.O increased number of surface atoms
A.O it increases the distance between atoms in nano
particles
C.O increased number of nano particles
D.O None of these​

Answer 1

As the particle size of nanoparticles decreases they become highly reactive due to increased number of surface atoms.

• When the size of the nanoparticle will decrease, the ratio will increase as a result of which there will be more surface atoms.
• The atoms on the surface will tend to lose a single bond compared to the atoms that are present inside the structure.
• Nanoparticles possess a high surface energy in this and hence are highly reactive.
• They have a poor stability but a high reactivity.