Question

21.
92
Nucleus U238 emits a – particle (He“). a
a - particle has atomic number 2 and mass number
4. At any instant a - particle is at distance of 9x10-15 m from the centre of nucleus of uranium
What is the force on a - particle at this instant?
1) 512 N
2) 256 N
3) 125 N
4) None​

Answer 1

Explanation:

Release of a α will decrease the atomic number by 2 and mass number by 4, and β particle will increase the mass number by 1 without change in mass number.

So final product will have a mass number of 234 and atomic number =91.

Answer 2

Answer:

At any instant a - particle is at distance of 9x10-15 m from the centre of nucleus of uranium force on a - particle at this instant –

2) 256 N

mark me as brainliest plz.....