To make a large-scale representation of a hydrogen atom in its ground state, you start with a super ball (D=4.00 cm) to represent the nucleus. How far away, R, in km will you have to put the representation electron?
R=____km
Proportion
0.04 m ..... 10^-15m
x .......... 10^-9 m
x=0.04•10^-9/10^-15 =4•10^4 m = 40 km