samarskite उदाहरण वाक्य

उदाहरण वाक्य

1. The chemical element samarium was first isolated from a specimen of samarskite in 1879 . Samarium was named after samarskite which was named for the Russian mine official, Colonel Vasili Samarsky-Bykhovets ( 1803 1870 ).
2. The chemical element samarium was first isolated from a specimen of samarskite in 1879 . Samarium was named after samarskite which was named for the Russian mine official, Colonel Vasili Samarsky-Bykhovets ( 1803 1870 ).
3. Further spectroscopic analysis between 1886 and 1901 of samaria, yttria, and samarskite by William Crookes, Lecoq de Boisbaudran and Eug�ne-Anatole Demar�ay yielded several new spectroscopic lines that indicated the existence of an unknown element.
4. Throughout his life he paid great attention to the rare earths and the problem of separating and distinguishing them; in 1878 he extracted ytterbium from what was supposed to be pure erbia, and two years later found gadolinium and samarium in the samarskite earths.
5. Samarium is not found free in nature, but, like other rare earth elements, is contained in many minerals, including monazite, bastn�site, cerite, gadolinite and samarskite; monazite ( in which samarium occurs at concentrations of up to 2.8 % ) Samarium is usually sold as oxide, which at the price of about 30 USD / kg is one of the cheapest lanthanide oxides.