Fermium has seven electron shells.
Only two electrons.
The atomic number (not isotope number) of fermium is 100.
For fermium: 30 electrons.
For fermium: 30 electrons.
Fermium has seven electron shells.
For the isotope Fm-257 the mass number is 257.
Fermium has 100 protons and electrons. Number of neutrons = Atomic mass of an isotope - Atomic number of the element The atomic number of fermium is 100; but fermium has 17 isotopes, each with a different number of neutrons. For the most stable isotope of fermium, 257Fm: protons-100 electrons-100 neutrons-157 atomic mass per unit (AMU)-257
Fermium and einsteinium were discovered in the debris from the thermonuclear test, Enawetak -1952. And also fermium has the atomic number 100.
The chemical symbol of fermium is Fm; as a subscript in the isotopes symbols is atomic number.
Fermium (Fm) is in Group 7 in the Periodic Table.
Fermium is an artificial chemical element, metal, actinoid, radioactive, atomic number 100.
Only isotopes Fr-221 and Fr-223 are natural.