Fermium (symbol Fm) is element number 100 of the periodic table and belongs to the “Actinide” category. Its atomic mass is about 257, and its phase under standard conditions is Solid. This element sits in period 7 and the f-block (Actinides) of the periodic table, and its electrons are arranged in shells of 2, 8, 18, 32, 30, 8, 2. The short electron configuration of Fermium is [Rn] 5f¹² 7s². Known uses of Fermium include Scientific research.
Fermium is a radioactive, mostly synthetic element; its data may be based on limited experiments or theoretical prediction.
The electron configuration of Fermium (Fm), with 100 electrons, is shown below. The last shell (shell 7) is highlighted:
Distribution of 100 electrons of Fermium across shells K to Q:
The actinides are the 15 elements from actinium to lawrencium, part of the f-block, and all of them are radioactive.
The atomic number of Fermium (Fm) is 100; that is, every atom of it has 100 protons.
The electron configuration of Fermium (Fm) is 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 4f¹⁴ 5s² 5p⁶ 5d¹⁰ 5f¹² 6s² 6p⁶ 7s²; in short form it is [Rn] 5f¹² 7s², and its last shell is 7s².
The chemical symbol of Fermium is Fm.
Fermium is located in period 7 and the f-block (Actinides) and belongs to the “Actinide” category.
The atomic mass of Fermium is about 257 (atomic mass units).
The phase of Fermium under standard conditions is Solid.
Uses of Fermium include Scientific research.
Fermium was discovered by Albert Ghiorso in 1952.
Actinium (Ac)Thorium (Th)Protactinium (Pa)Uranium (U)Neptunium (Np)Plutonium (Pu)Americium (Am)Curium (Cm)Berkelium (Bk)Californium (Cf)Einsteinium (Es)Mendelevium (Md)Nobelium (No)Lawrencium (Lr)
