Why is neutron so effective as a bombard...

Why is neutron so effective as a bombarding particle?

Text Solution

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This is primarily because neutrons carries no charge.It is neither attracted nor repelled by nucleus and electrons. Therefore, neutron is best projectile.

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The nuclide ""_(99)^(247)Es can be obtained by bombarding ""_(92)^(239)U in a reaction that emits 5 neutrons . The bombarding particle is

`""_(2)^(4)He`

`""_(1)^(3)H`

`""_(7)^(13)N`

`""_(-1)^(0)e`

Each question contains STATEMENTS-1 (Assertion) and STATEMENT -2 (Reason). Examine the statements carefully and mark the correct answer according to the instructions given below: STATEMENT-1: Neutron are the best bombarding particles. STATEMENT-2: Neutrons are neutral particles.

If both the statements are TRUE and STATEMENT-2 is the correct explanation of STATEMENT-1

If both the statement are TRUE but STATEMENT-2 is NOT the correct explanation of STATEMENT-1

If STATEMENT-1 is TRUE and STATEMENT-2 is FALSE

If STATEMENT-1 is FALSE and STATEMENT-2 is TRUE

The neutron, proton, electron and alpha particle are moving with equal kinetic energies. How can the particles be arranged in the increaseing order of their velocities?

alpha particle -neutron proton - electron

proton - electron - neutron - alpha paraticle

electron - ptoton - neutron - alpha paraticle

neutron - proton - electron - alpha paraticle