Question

A certain atom is spherical with a radius of 0.200 nm. What is the volume of the atom?

Answer 1

Well, what is the density of a sphere...?

Explanation:

Is it not `4/3pir^3`...where `r-="atomic radius"`?

And so....`4/3xxpixx(0.200xx10^-9*m)^3=??*m^3`