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Thulium is an lanthanide element with atomic number 69.

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What family does thulium belong to?

Thulium belongs to the Lanthanide family. Thulium is a silvery metal, so soft it can be cut with a knife. Thulium is stable in air, but reacts slowly with water, and rapidly with acids.


What is thulium named after?

Thulium is named after the ancient name for Scandinavia, Thule. This element was discovered in 1879 by Swedish chemist Per Teodor Cleve.


How many shells does thulium have?

Thulium has 79 shells.


What is the chemical symbol for thulium?

The symbol for tantalum is Ta.


What is the atomic number of thulium?

Thulium, with the chemical symbol Tm, is the chemical element with the atomic number 69.


Is thulium a metal nonmetal metalloid?

Thulium--Tm, atomic number 69--is a silvery-white metal.


How many electrons protons and neutrons does thulium has?

69 protons, 69 electrons Thulium-169 isotope has 100 neutrons


Many neutron does Thulium have?

300 :)


What is the atomic mass of thulium?

168.93


Does thulium have an odor?

Thulium is a rare earth metal and does not have a discernible odor in its pure form. It is not known to produce any strong or distinctive smells.


Can thulium form into a diamond?

Diamonds are formed from 100% carbon. The elements in Thulium are not conducive to forming diamonds. From the Jefferson Lab Web site: ". . . thulium is primarily obtained through an ion exchange process from monazite sand ((Ce, La, Th, Nd, Y)PO4), a material rich in rare earth elements that can contain as much as 0.007% thulium."


Where did the chemical sybol for thulium come from?

My Mom