- Praseodymium is a rare
earth metal from the group of light rare earth element that has the
atomic number 59 and symbol Pr.
- Praseodymium is a
soft, malleable, ductile, silvery metal and it is one of the
lanthanide rare earth metals.
- It can be prepared by
several methods, such as by calcium reduction of the anhydrous
chloride of fluoride and It is reacts with water to form
praseodymium hydroxide plus hydrogen gas.
- It is not found free
in nature but is found in a number of minerals mainly monazite and
bastnasite.
- It has 32 isotopes
whose half-lives are known, with mass numbers 121 to 154. naturally
occurring praseodymium consists of its one stable isotope, 141Pr.
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