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31 Post Transition Metal
Ga

Gallium

RIS 0.075
Velocity +0.000
Rank#23
Co-citedAs

Gallium (Ga) is a post-transition metal with atomic number 31: a neutral gallium atom has 31 protons and 31 electrons. Atomic mass 69.723 u, electron configuration [Ar] 3d10 4s2 4p1. Gallium is a soft metal with an unusually low melting point that will melt in your hand.

Physical properties
Atomic mass 69.723 u
Category Post Transition Metal
Block p-block
State Solid
Config [Ar] 3d10 4s2 4p1
Electronegativity 1.81
Density 5.907 g/cm³
Melting 302.91 K
Boiling 2477.0 K
Ionization 578.8 kJ/mol
Oxidation +1, +2, +3
Discovered 1875 · Lecoq de Boisbaudran
Gallium's history

Research intensity over time

Research communities behind this literature

Groups of papers that cite each other densely, with the share of Gallium's tracked research in each.