Pr
Praseodymium gives glass and enamel a distinctive yellow-green color.
የፊዚክስ ባህሪያት
| አቶሚክ | 140.91 u |
| ብዛት | 6.773 g/cm³ |
| የቀለም አማራጭ | 1208.0 K |
| የሙቀት መጠኑ፦ | 3793.0 K |
| ቅርጽ | Grayish-white metallic |
| የክፍሉ ወቅት | ቀጥ ያለ |
የኬሚካል ባህሪያት
| ሴኮንዶች | 1.13 (ፒየር) |
| ፊደል ሠሌዳው፦ | 527.0 kJ/mol |
| ፊደል ሠሌዳው፦ | 93.0 kJ/mol |
| መተላለፊያ | +2, +3, +4 |
የፊደል ቅርጽ ምርጫዎች
| የኤሌክትሮን ማስተካከያ | [Xe] 4f3 6s2 |
| አቶሚክ | 182.0 pm |
| ሬዲየስ | 203.0 pm |
| ቫን ዴር ዋልስ | 239.0 pm |
መከፈት
| የተገኘው በ | Carl Auer von Welsbach |
| የምርምር ዓመት | 1885 |
| ቦታ | Vienna, Austria |
| ስም፦ (_N) | Greek 'prasios didymos' meaning green twin |
ስለ Praseodymium
Praseodymium is a soft, silvery, malleable metal separated from neodymium in 1885 by Welsbach from what was thought to be 'didymium.'
ፕሮግራሞች
Magnets (with neodymium), aircraft engines, welder's goggles, and ceramics colorant.
ሐቅ
Praseodymium was hidden for decades inside 'didymium' until it was finally separated from neodymium in 1885.
ሴኮንዶች
| ብዛት | ብዛት | አራተኛ | ቋሚ |
| 141 | 1.0% | - | አዎ |
የኤሌክትሮን ማስተካከያ
[Xe] 4f3 6s2