Answer:
1.8 cm according to the given data.
Explanation:
Answer : The correct option is, (A) Aluminum foil
Explanation :
Penetration power : It is the movement of particles or the ray through an object. As we know that the more the energy of a particle, the more will be the penetrating power.
The ascending order of the penetration power of alpha rays, beta rays, and gamma rays are:
Alpha rays < Beta rays < Gamma rays
The penetrating power of the alpha, beta and gamma rays varies greatly. That means,
- The alpha particles are restricted by paper.
- The beta particles can pass through the paper but it can not pass through the aluminum foil.
- The restriction of gamma rays is very difficult. It can be restrict or blocked only by concrete, lead, or other heavy shielding.
Hence, Aluminium foil will stop beta particles.
An atom of Oxygen. Contains:
Protons = 8
Electrons = 8
Neutrons = Mass number - Number of protons = 18 - 8 = 10
Neutrons = 10.
Answer:
adding
opposite
Explanation:
dont blame me if u get them wrong