The power of the magnet is determined by the force of the magnetic field it creates.
Explanation:
A concave meniscus,(normally seen) occurs when the molecules of the liquid are attracted to those of the container. This occurs with water and a glass tube. A convex meniscus occurs when the molecules have a stronger attraction to each other than to the container, as with mercury and glass.
The atomic number is how much space is in a object and the mass number is how much it's filled... if I'm not mistaken...