The atom of promethium contain 61 protons and electrons.
For each isotope the number of neutrons is different. Number of neutrons = Mass number of an isotope - 61
Promethium bromide contain promethium and bromine.
The neutral atom of promethium contain 61 electrons.
Promethium exist in nature only in traces; it is supposed that the Earth crust contain less than 1 kg promethium.
As all other chemical elements promethium contain protons (61), electrons (61) and a variable number of neutrons depending on the isotope.
Yes, promethium, which is a lanthanide, has no stable isotopes.
The atom of promethium contain 61 protons and electrons.For each isotope the number of neutrons is different. Number of neutrons = Mass number of an isotope - 61
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.
Promethium is not flammable.
Yes, Promethium is a radioactive element that is paramagnetic, meaning it is weakly attracted to magnetic fields.
Promethium salts, oxides, and halides are common compounds of promethium. Promethium oxide (Pm2O3) and promethium chloride (PmCl3) are among the compounds that can be formed with promethium.
Yes. Promethium is a solid.
Promethium is not flammable.