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Upon heating to 731 °C, its crystal symmetry changes into hexagonally close-packed (hcp), however the transition temperature depends on the metal purity.Further heating to 922 °C transforms the metal into a body-centered cubic (bcc) phase.It is a moderately hard silvery metal that readily oxidizes in air.Being a typical member of the lanthanide series, samarium usually assumes the oxidation state 3.For instance, when we talked to Yoahn (Han), he was saying there are so many small things that surprise people.Samarium is a chemical element with symbol Sm and atomic number 62.K-pop boy bands still have those qualities, but because of the capital and the glamorization that is inherent to the commercial pop industry, all these characteristics become attractive and desirable.We wanted to experiment and play with this idea by teaching our boys how to act and embody what it means to act like K-pop boy bands.”“It would be an interesting concept to non-Koreans because we are talking about Korean culture here, but not a lot of people understand it.
These minerals are mostly found in China, the United States, Brazil, India, Sri Lanka and Australia; China is by far the world leader in samarium mining and production.
Compounds of samarium(II) are also known, most notably the monoxide Sm O, monochalcogenides Sm S, Sm Se and Sm Te, as well as samarium(II) iodide.
The last compound is a common reducing agent in chemical synthesis.
The mineral itself was earlier named after a Russian mine official, Colonel Vassili Samarsky-Bykhovets, who thereby became the first person to have a chemical element named after him, albeit indirectly.
Although classified as a rare-earth element, samarium is the 40th most abundant element in the Earth's crust and is more common than such metals as tin.