1s22s22p63s23p64s23d104p65s04d3 The electron configuration of molybdenum changes to 42M o3+ when it loses 3 electrons to create the ion M o3+. It is paramagnetic.
However, the electrons will be removed from 5s2 first and the final electron from 4d4 will be removed. Some people get confused and remove the three electrons from 4d4 first. Paramagnetic substances are those that become weekly magnetised when exposed to an external magnetic field in the same plane as the applied field. Example: Lithium, Air, Aluminum, Sodium, Calcium, Platinum, Magnesium, Molybdenum, and Air. Molybdenum is a silvery-gray metal with a Mohs hardness of 5.5 and an average atomic weight of 95.95 g/mol in its pure state. Only tantalum, osmium, rhenium, tungsten, and carbon have greater melting points among naturally occurring elements than its 2,623 °C (4,753 °F) melting point.
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