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

This will be the perfect gift this winter! It even came in a nice little box. The mug seems to be of good quality. It was a bit pricy, got to be honest, but it’ll be very well received.
Deathless but probably comatose verse This cup is a beautiful mug From which I am happy to chug while engaging in jomo (the obverse of fomo), and pulling the ol' cyber plug.
The mug is just the right size, and the graphics are awesome!
This mug... this mug gave me a feeling that I can only describe as pure euphoria. The 'MRI - Man's a Real Idiot' mug is truly a gift from above. I cannot express how happy I am with it. When it arrived at my front door, it was a moment of epiphany for myself. My eyes were opened. I understood what was missing in my life... and it was that very mug. Whoever created it is truly gifted. I bless them. You too could purchase it, although the price may seem high at first, for what it is, it is the greatest deal one could ever make.
Would have like the entire cup with purple color. Not just the part with the slogan. It's a nice cup!
Wow! Outstanding mug! I strive to be swoogish one day
It was fantastic very good quality.
Was purchased as a gift . Very well received . Easy ordering . Arrived earlier than predicted.excellent quality. Would recommend to friends and family and will definitely order again in the future.
The mug I ordered came in perfect shape In a box obviously designed for safe shipping. Quality is beautiful and is exactly as described. Thank you!
ABSOLUTE ART WORK!!!!! This is literally the best mug in the world. My entire family has one (wife, 2 daughters, and 3 sons). I would definitely recommend and place it as a mounoment.
Hilarious, I couldn't help but burst out loud in laughter.... !!!
It understands me. this mug has treated me better than any girl i've ever dated, and every bro i've chilled in the same bed with. we've been though thick and thin, but mostly thicc. i used to be depressed, but now this mug holds my existential fears so i dont need to carry them with me. i even wrote a song about my mug: mary had a little mug, e-i-e-i-o how i wonder what you are, floppy dongs near and far, cherri had a real thicc mug, e-i-e-i-despaci-to
Great mug, 100% recommend it for all family members! Best gift I’ve ever received!!!
It was so easy to order - and I could play with the syntax of the definition to get it just right. All of this was easy. And quite soon it arrived and is perfect.

Love it!! So true!!
I love 💕 mugs ☘️! These are so lovable. Thanks! I love the urban dictionary writers too.
The printing, the Word and it's definition -- were not quite what I expected. And the same word definition ordered on two different mugs, and yet each was described / defined differently.
Augustine would love the mis-spelling It should be Augustine's Laws. A great book - every engineer, programmer, project and programme manager should read. Based on experience of Defence and Space projects, and with lots of real data to support the tongue-in-cheek advice, it really has more value than all the System Engineering books I've never read. Can't wait to get a mug.
Sickm8 it was blooming gr8 for me GF. She bloody loved it. Onya!!!! ;)

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