C) Planet
Mercury
Jupiter
Earth
Mars
Saturn
Diameter (km)
4.88 x 10
1.43 x 105
1.28 x 104
6.78 x 10
1.21 x 10
Mass (kg)
3.3 x 1023
1.898 x 1027
5.97 x 1024
6.42 x 1023
5.68 x 1026
a) Write down the name of the planet with the greatest mass.
b) Work out the radius of Mercury giving your answer as an ordinary number.
c) Work out the difference between the masses of Jupiter and Saturn.
Give your answer in standard form.