Gallium (symbol Ga) is element number 31 of the periodic table and belongs to the “Metal” category. Its atomic mass is about 69.723, and its phase under standard conditions is Solid. This element sits in period 4 and group 13 of the periodic table, and its electrons are arranged in shells of 2, 8, 18, 3. The short electron configuration of Gallium is [Ar] 3d¹⁰ 4s² 4p¹. Known uses of Gallium include Computer chips, Thermostats and Mirrors.
The electron configuration of Gallium (Ga), with 31 electrons, is shown below. The last shell (shell 4) is highlighted:
Distribution of 31 electrons of Gallium across shells K to N:
The p-block metals (the post-transition metals) are usually softer than the transition metals and have lower melting points.
The atomic number of Gallium (Ga) is 31; that is, every atom of it has 31 protons.
The electron configuration of Gallium (Ga) is 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p¹; in short form it is [Ar] 3d¹⁰ 4s² 4p¹, and its last shell is 4s² 4p¹.
The chemical symbol of Gallium is Ga.
Gallium is located in period 4 and group 13 and belongs to the “Metal” category.
The atomic mass of Gallium is about 69.723 (atomic mass units).
The phase of Gallium under standard conditions is Solid.
Uses of Gallium include Computer chips, Thermostats and Mirrors.
Gallium was discovered by Paul-Émile Lecoq de Boisbaudran in 1875.
Aluminum (Al)Indium (In)Tin (Sn)Thallium (Tl)Lead (Pb)Bismuth (Bi)Polonium (Po)Nihonium (Nh)Flerovium (Fl)Moscovium (Mc)Livermorium (Lv)
