Francium (symbol Fr) is element number 87 of the periodic table and belongs to the “Alkali metal” category. Its atomic mass is about 223, and its phase under standard conditions is Solid. This element sits in period 7 and group 1 of the periodic table, and its electrons are arranged in shells of 2, 8, 18, 32, 18, 8, 1. The short electron configuration of Francium is [Rn] 7s¹. Known uses of Francium include Scientific research.
The electron configuration of Francium (Fr), with 87 electrons, is shown below. The last shell (shell 7) is highlighted:
Distribution of 87 electrons of Francium across shells K to Q:
The alkali metals are the group 1 elements (excluding hydrogen): soft, shiny and highly reactive metals that react violently with water and are never found free in nature.
The atomic number of Francium (Fr) is 87; that is, every atom of it has 87 protons.
The electron configuration of Francium (Fr) is 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 4f¹⁴ 5s² 5p⁶ 5d¹⁰ 6s² 6p⁶ 7s¹; in short form it is [Rn] 7s¹, and its last shell is 7s¹.
The chemical symbol of Francium is Fr.
Francium is located in period 7 and group 1 and belongs to the “Alkali metal” category.
The atomic mass of Francium is about 223 (atomic mass units).
The phase of Francium under standard conditions is Solid.
Uses of Francium include Scientific research.
Francium was discovered by Marguerite Perey in 1939.
Lithium (Li)Sodium (Na)Potassium (K)Rubidium (Rb)Cesium (Cs)
Hydrogen (H)Lithium (Li)Sodium (Na)Potassium (K)Rubidium (Rb)Cesium (Cs)
