1.

Velocity of an electron decreases as we go father from the nucels's justify.

Answer»

Solution :According to Borh's angular momentum is quantised
`mvr=(NH)/(2 pi)rArr v= (nh)/(2 pi MR.)` Form the above expression ,it is obvious that the VELOCITY decreases ,as we GO away from the nucles . It is due to the decrease in NUCLEAR forces of attrection.


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