168.93
168.93
Thulium has 100 neutrons because its atomic number is 69 and atomic mass is 168.93 so if we subtract atomic no. by atomic mass ie. 168.93-69 we get the value 100.
The atomic mass of 173.04 likely refers to the isotope of the element thulium (Tm), which has an atomic number of 69. Thulium has several isotopes, but the most stable and common isotope is thulium-175, which has an atomic mass of approximately 174.97. However, the value 173.04 does not correspond to a specific isotope but could be a rounded average of thulium's isotopes or a reference to another element in a different context.
Thulium, with the chemical symbol Tm, is the chemical element with the atomic number 69.
Thulium--Tm, atomic number 69--is a silvery-white metal.
The atomic number of thulium [note correct spelling] is 69.
Thulium is an lanthanide element with atomic number 69.
It is an element - a lanthanide metal - with atomic number 69.
An elements atomic number gives us its number of protons. Referencing the periodic table, we find the element with atomic number 69 is thulium. Thus, thulium has 69 protons.
The two elements with "three eyes" in their names are "bismuth" and "thulium." Each of these element names contains three instances of the letter "i." Bismuth has the atomic number 83, while thulium has the atomic number 69.
That would be Thulium, atomic symbol Tm.
The atomic number is the count of how many protons an atom has in its nucleus (and therefor also the count of how many electrons the neutral atom possesses). The atomic number us unique for each element and positions the element in the periodic table. The element with atomic number 39 is Yttrium (Y).