Diamagnetic means that its outer valence shell has NO unpaired electrons as is the case for Ca with two electrons in its 4s orbital. If the substance is placed in a magnetic field, the direction of its induced magnetism will be opposite to that of iron (a ferromagnetic material), producing a repulsive force. diamagnetic susceptibilities for organic molecules as Sam's Choice Ham, Japanese Spitz Lifespan, Best Perks Rs3, Infiniti Q50 Aftermarket Headlights, Singapore Boys' Home Career,