69
Thulium Atomic number 69 Group, block group n/a, f-block Period period 6 Element category lanthanide Standard atomic weight (±) (Ar) 168.93422(2)1 Electron configuration Xe 4f13 6s2 per shell 2, 8, 18, 31, 8, 2 Physical properties Phase solid Melting point 1818 K (1545 °C, 2813 °F) Boiling point 2223 K (1950 °C, 3542 °F) Density near r.t. 9.32 g/cm3 when liquid, at m.p. 8.56 g/cm3 Heat of fusion 16.84 kJ/mol Heat of vaporization 191 kJ/mol Molar heat capacity 27.03 J/(mol·K) vapor pressure P (Pa) 1 10 100 1 k 10 k 100 k at T (K) 1117 1235 1381 1570 (1821) (2217) Atomic properties Oxidation states 2, 3 (a basic oxide) Electronegativity Pauling scale: 1.25 Ionization energies 1st: 596.7 kJ/mol 2nd: 1160 kJ/mol 3rd: 2285 kJ/mol Atomic radius empirical: 176 pm Covalent radius 190±10 pm Miscellanea Crystal structure hexagonal close-packed (hcp) Hexagonal close packed crystal structure for thulium Thermal expansion poly: 13.3 µm/(m·K) (at r.t.) Thermal conductivity 16.9 W/(m·K) Electrical resistivity poly: 676 nΩ·m (at r.t.) Magnetic ordering paramagnetic (at 300 K) Young's modulus 74.0 GPa Shear modulus 30.5 GPa Bulk modulus 44.5 GPa Poisson ratio 0.213 Vickers hardness 470–650 MPa Brinell hardness 470–900 MPa CAS Number 7440-30-4 History Naming after Thule, a mythical region in Scandinavia Discovery and first isolation Per Teodor Cleve (1879)
The Urban Dictionary Mug
The mug is pretty and the writing on it is clear. It is of good quality and it makes me smile.
Well madder nice print. 8 0z cup. I'd prefer a mug but will be ordering 3 more. Just my cuppa tea (or coffee). Americans always make fun of some of the things I say. Recently my brother and I were talking about the Trawna Maple Leafs. I decided to look it up and sure enough there is was Trawna the city I grew up in. Now who has the last laugh.
I ordered pink but got purple, and the text wasn't very clean, but overall, it is a mug.
It was a gift for my sister, who wrote it. She loved it and so did I!
pushin 🅿️ w this mug😩
Got a ligma mug it's my favorite mug now
Arrived quickly, nicely packaged, exactly as expected, a good quality mug. Thank you!
Always shipped in proper package and timely
straightforward order and delivery
What a mug. After i bought it i got so much more rizz
Fast service. Precisely what I ordered.
My son wanted this mug. I highly recommend ordering from this site. Easy to order, pay, and track. Mug arrived without issue and is perfect!
The mug is great! I use it every morning for my coffee.
The coffee mug looks great and always draws comments from others.
FUCKING BEST CUP EVER NGL
Loiks great
I had it drop-shipped and the recipient was very pleased. Thank you for the quick service and handling.
The coffee mug looks great and always draws comments from those seeing the first time.
perfect for when im expressing myself <3
The most coolest I own!
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