Bromine exists as a diatomic molecule (Br 2) and has a total of 70 electrons. Bromine molecules contain pure covalent bonds and are therefore held together by London dispersion forces (temporary dipoles caused by momentary uneven distribution of electrons. Bromine is a liquid at room temperature (melting point -7°C). p >
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7726-95-6. Br. Brom. Dibrom. molekulares Brom.
Polar covalent bonds. A polar covalent bond exists when atoms with different electronegativity share electrons in a covalent bond. Consider the molecule hydrogen chloride (HCl). Each atom in HCl needs one more electron to form a noble gas electron configuration.
The Br2 molecule has a linear or tetrahedral geometric shape because it contains a bromine atom in the tetrahedron and three corners with three lone pairs of electrons.
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