Praseodymium: Difference between revisions
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'''Praseodymium''' is a [[Chemical elements|chemical element]], having the [[chemical symbol]] Pr. Its [[atomic number]] (the number of [[proton]]s) is 59. It has a [[Atomic mass#Standard atomic weights of the elements|standard atomic weight]] of 140.9077 g•mol<sup> −1</sup> and is a [[solid]] in its elemental form. | '''Praseodymium''' is a [[Chemical elements|chemical element]], having the [[chemical symbol]] Pr. Its [[atomic number]] (the number of [[proton]]s) is 59. It has a [[Atomic mass#Standard atomic weights of the elements|standard atomic weight]] of 140.9077 g•mol<sup> −1</sup> and is a [[solid]] in its elemental form. | ||
Praseodymium is | Praseodymium is considered a member of the "Lanthanide" class of elements. At a [[pressure]] of 101.325 k[[Pascal (unit)|Pa]], it has a [[boiling point]] of 3,520 °[[Celsius (unit)|C]] and a [[melting point]] of 931 °C. | ||
Latest revision as of 17:42, 28 April 2011
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Praseodymium is a chemical element, having the chemical symbol Pr. Its atomic number (the number of protons) is 59. It has a standard atomic weight of 140.9077 g•mol −1 and is a solid in its elemental form.
Praseodymium is considered a member of the "Lanthanide" class of elements. At a pressure of 101.325 kPa, it has a boiling point of 3,520 °C and a melting point of 931 °C.