Okwu mmeghe dị nkenke
Aha ngwaahịa: Samarium
Usoro: Sm
Nọmba CAS: 7440-19-9
Arọ Molecular: 150.36
Njupụta: 7.353 g/cm
Nọmba agbaze: 1072Celsius C
Ụdị: 10 x 10 x 10 mm cube
Samarium bụ ihe na-adịghị ahụkebe nke ụwa nke bụ ọla ọcha-ọcha, dị nro na metal ductile.Ọ nwere ebe mgbaze nke 1074 °C (1976 Celsius F) na ebe esi 1794 Celsius (3263 Celsius F).A maara Samarium maka ikike ịmịnye neutrons na iji ya mee ihe na mmepụta nke samarium-cobalt magnet, nke a na-eji na ngwa dị iche iche, gụnyere na moto na ndị na-emepụta ihe.
A na-emepụta metal Samarium site n'ụdị dị iche iche, gụnyere electrolysis na mbelata okpomọkụ.A na-erekarị ya n'ụdị ingots, mkpara, mpempe akwụkwọ, ma ọ bụ ntụ ntụ, a pụkwara ime ya ka ọ bụrụ ụdị ndị ọzọ site na usoro dịka nkedo ma ọ bụ akpụ.
Samarium metal nwere ọtụtụ ngwa nwere ike ime, gụnyere n'imepụta ihe ndị na-enye ike, alloys, na ngwá electronic, yana n'ichepụta magnet na ihe ndị ọzọ pụrụ iche.A na-ejikwa ya na-emepụta mmanụ ọkụ nuklia na mmepụta nke ugogbe anya pụrụ iche na ceramik.
Ihe: | Samarium |
Ịdị ọcha: | 99.9% |
Nọmba atọm: | 62 |
Njupụta | 6.9 g.cm-3 na 20 Celsius |
Ebe mgbaze | 1072 Celsius C |
Ntụ egwu | 1790 Celsius C |
Akụkụ | 1 inch, 10mm, 25.4mm, 50mm, ma ọ bụ ahaziri |
Ngwa | Onyinye, sayensị, ihe ngosi, mkpokọta, ịchọ mma, agụmakwụkwọ, nyocha |
Samarium bụ ọla ọcha na-acha ọcha nke ndị otu lanthanide nke tebụl oge.Ọ na-akwụsi ike na ụlọ okpomọkụ na ikuku akọrọ, ma ọ na-enwu mgbe ọ dị ọkụ karịa 150 C ma na-emepụta mkpuchi oxide n'ime ikuku mmiri.Dị kaeuropiumsamarium nwere ọnọdụ oxidation kwụsiri ike (II).