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Ensampel a |
Elven gymyk ![]() |
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Furvell gymyk |
Tm ![]() |
Dydhyas diskudhans |
1879 ![]() |
Niver atomek |
69 ![]() |
Elektronegedhegedh |
1 ![]() |
Rann a |
lanthanid, period 6 ![]() |
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Elven gemyk ew thuliom, niver 69 e'n Vosen Beriodek. Y arwodh ew Tm. An hanow a dheu dhort an hanow Greka rag Loghlyn, Thule. Onan a'n elvednow dor-tanow po lanthanid ew thuliom. Nag eus radn vewoniethel dhe thuliom, bes nag ew gwenonek.
Diskudhys veu thuliom gen Per Teodor Cleve (1840-1905), kemygydh a Sweden, en kettermyn ha diskudhans holmiom. Kevys ew en mynsow munys gen lanthanidow erel en monyow pekara gadolinit. Askorrys ew a-dro dhe 50 tonnas a thuliom an vledhen, dre vras en China. Pur gostek ew thuliom. Kost polter thuliom 99% pur ew $70 an gramm.
Keworrys ew thuliom gen holmiom ha kromiom rag oberi laserow garnet ytriom-aluminiom. Usys enjei en leuvvedhegneth, gen an luyow ervys, hag en meteorolgieth. Usys ew an isotop thuliom-170 avel pednfenten dewydnow-X gen medhogyon ha medhogyon dens. Gorrys ew en banknotednow euro avel musur gorthfugya. Usys ew thuliom ewedh en ughkendegoryon tempredh ughel.
Poos atomek thulion ew 168.93, y boynt teudhi ew 1545°C ha'y boynt bryjyon ew 1950°C. Y dhosedh ew 9.3kg an liter. Olkan spladn arhansek ew, medhel luck dh'y dreghi gen kollell.