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Who is promethium?
Promethium is a chemical element, atomic number 61.
What is atomic number 61?
Promethium
What is promethium's family number?
Promethium is one of the lanthanoids, atomic number 61, period 6.
Classificatioun of promethium?
Promethium is a metal in the family of lanthanoids.
What is 61 promethium?
Promethium is a chemical element from the lanthanoids family, with the atomic number 61, metal, radioactive.
What is the atomic number 61?
That's impossible. The atomic mass is the number of protons plus the number of neutrons.If you meant the element with atomic number 61, the name is Promethium. But it doesn't have 108 neutrons.
What is the atomic radius for promethium?
The empirical atomic radius of promethium is 183 pm.
What is the symbol for promethium?
Isotopes of all elements contain the chemical symbol of the element and:- as a superscript, to left: the mass number of the isotope- as a subscript to left: the atomic number of the elementA correct symbol is not possible to be written on WikiAnswers window.
What came first hydrogen or promethium?
Hydrogen as the atomic number 1 and promethium has the atomic number 61.
What is the atomic mass of Promethium?
The atomic mass of Promethium (Pm) is approximately 145 u (atomic mass units).
What is the atomic symbol of promethium?
The chemical symbol of promethium is Pm.
What does Pm stand for in the periodic table?
Pm stands for Promethium in the periodic table. It is a rare earth element with the atomic number 61.
