Answer:
The correct answer would be A.
The surface area is a big help
Answer:
Speed, 
Explanation:
The device which is used to accelerate charged particles to higher energies is called a cyclotron. It is based on the principle that the particle when placed in a magnetic field will possess a magnetic force. Just because of this Lorentz force it moves in a circular path.
Let m, q and V are the mass, charge and potential difference at which the particle is accelerated.
The work done by the particles is equal to the kinetic energy stored in it such that,

v is the speed with which the particles enter the cyclotron
So,

So, the speed with which the particles enter the cyclotron is
. Hence, this is the required solution.
Answer:
B.Self powered
Explanation:
They move by themselves.Hope this answer helps you ;)
Answer:
b. One electron state is an anti-bonding orbital, which results in an absence of electron density between atoms.
Explanation: