Assume that nucles of f atom is a sphere of radius 5×10 cm. calculate thevdensity of f sphere

Answer 1

density = mass/volume

v = 4pi/3 r^3

I assume you know the mass.

Answer 2

Check your post for the correct radius. I think 50 cm is large for a nucleus. I suspect you omitted the (negative) exponent of 10.