Kruel,+Kyler


 * Holmium
 * Ho – symbol
 * Boiling point-4928 F
 * Melting point-2662 F
 * Density- 8795 kg m-3
 * Number of protons-67 neutrons-98 electrons- 67
 * Atomic mass-165
 * Atomic number-67
 * Valence electrons-2


 * 1878 by Swiss chemists, Delafontaine and Soret in Sweden
 * Pure holmium is produced by reacting calcium metal with holmium fluoride
 * Some common ores of holmium are monazite and gadolinite
 * Special lasers
 * To treat glaucoma
 * Reduce abnormal eye pressure
 * Reacts with air and sodium hydroxide
 * $1722 per 100 mg





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