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 was a phrase my husband and I made up even we first started dating. We laughed so hard while submitting it. The mug is perfect!
i love it. my friend loved it. yay. now i'm happy and not depressed anymore.
Arrived speedily and exactly as pictured.
I LOVE GETTING THE FUCKING MUG
The wife absolutely loved it for her birthday
Cute, good quality, *****!
My order was delivered very quickly and was high quality. Glad to add it to my mug shelf.
I love it, but of course the definition Ichose for “Unicorn” is too long and gets cut off after “someone is remarkably attractive.” Is there any way to purchase a second mug that has the rest of the quote on it? They’d make a great set as a present. Please let me know. David Tillinghast dtilling480@gmail.com
Awesome mugs!
These mugs are great! Great Quality and variety of colors also!
I was very happy in the experience and having a couple modifications made. The support team was very responsive And helpful in making sure it was done and delivered.
Exactly what I was expecting and a great product.
looks exactly as I expected -- nicely packaged, also quick service~!
Absolutely loved the mug, but it has scratches on it. Regardless, I would order it again!
As a Jolology major, I love my new mug!
I gave it as a gift and the recipient loved it. No indication where it was made, so maybe USA? That would be really nice, if so.
The mug is of good quality but advertisement needs to change as the sample photo for ordering gives the customer an illusion that the entire mug is of that color ordered when it is not
What is there to say? It's a mug, with a word in front and the definition in back. Nicely done!
excellent customer service. i gave the wrong address and they got it here quick.
love it
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