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- Thulium - Wikipedia
Thulium is a chemical element; it has symbol Tm and atomic number 69 It is the thirteenth element in the lanthanide series of metals It is the second-least abundant lanthanide in the Earth's crust, after radioactively unstable promethium It is an easily workable metal with a bright silvery-gray luster
- Thulium | Rare Earth Element | Britannica
Thulium (Tm), chemical element, a rare-earth metal of the lanthanide series of the periodic table Thulium is a moderately hard, silvery white metal that is stable in air but can easily be dissolved in diluted acids—except hydrofluoric acid (HF), in which an insoluble trifluoride (TmF3) layer forms
- Thulium Facts, Symbol, Discovery, Properties, Uses - Chemistry Learner
Thulium (pronounced as Thoo-lee-em) [2] is a soft, silver -gray rare earth metal [3] belonging to the Lanthanides group and represented by the symbol Tm [1] While its most abundant, naturally occurring isotope is 169 Tm, it has 34 radioactive isotopes, out of which the most stable one is 171 Tm with a half-life period of 1 92 years [4]
- Thulium - Element information, properties and uses | Periodic Table
Element Thulium (Tm), Group 19, Atomic Number 69, f-block, Mass 168 934 Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images
- Thulium - Encyclopedia. com
Thulium is probably the rarest of the lanthanide elements Its abundance is estimated at about 0 2 to 1 part per million in the Earth 's crust This still makes it more abundant than silver, platinum, mercury, and gold
- Thulium Facts – Element Tm or Atomic Number 69 - Science Notes and . . .
Thulium (Tm) is a rare earth element, part of the lanthanide series and f-block in the periodic table Its atomic number is 69 and its element symbol is Tm Most of the rare earths are not all that uncommon, but thulium truly is rare
- Thulium: Rare Earth Element with Specialized Applications
Discover the fascinating world of Thulium, a rare-earth element with the atomic number 69 Learn about its unique physical and chemical properties, its specialized industrial and medical applications, and its significance in modern technology
- Thulium Element Facts Chemistry - chemicool. com
Thulium is a bright, soft, malleable, silvery-gray metal It is a rare earth metal and is one of the least abundant The metal tarnishes slowly in dry air to form the oxide and reacts with water to form the hydroxide and hydrogen gas
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