praseodymium मीनिंग इन हिंदी

संज्ञा
• श्यामला

अधिक: आगे

Praseodymium makes up 1 part per trillion of seawater.
There is almost no praseodymium in the atmosphere.
However they were unable to make the cerium, praseodymium, and terbium nickelates.
Mischmetal, used in making cigarette lighters, historically contained about 5 % praseodymium metal.
Like most rare earth elements, praseodymium most readily forms trivalent Pr ( III ) ions.
Many of praseodymium's industrial uses involve its use to filter yellow light from light sources.
It is the most common of the lanthanides, followed by neodymium, lanthanum, and praseodymium.
By contrast, at sufficiently high loadings, praseodymium glass is distinctly green, rather than pure yellow.
However, this model fails to address superconductivity in the homologue Pr123 ( praseodymium instead of yttrium ).
Praseodymium occurs in small quantities in Earth's crust ( 9.5 counter-current solvent extraction.

संज्ञा.

a soft yellowish-white trivalent metallic element of the rare earth group; can be recovered from bastnasite or monazite by an ion-exchange process
पर्याय: Pr, atomic number 59