“metallic bond”的概念、定义、翻译、参考文献-科学参考

metallic bond

Chemistry

A chemical bond of the type holding together the atoms in a solid metal or alloy. In such solids, the atoms are considered to be ionized, with the positive ions occupying lattice positions. The valence electrons are able to move freely (or almost freely) through the lattice, forming an ‘electron gas’. The bonding force is electrostatic attraction between the positive metal ions and the electrons. The existence of free electrons accounts for the good electrical and thermal conductivities of metals. See also energy bands.

Chemical Engineering

A covalent bond between atoms in metals and alloys, in which the valence electrons are free to move through the crystal lattice structure.

Geology and Earth Sciences

A special type of covalent bond found in such solids as native copper. Every atom shares its electrons with each of its neighbours in turn. The sharing atoms must be able to move and so in metals they appear to be positive ions moving in a sea of electrons.

单词	metallic bond
释义	metallic bond Chemistry A chemical bond of the type holding together the atoms in a solid metal or alloy. In such solids, the atoms are considered to be ionized, with the positive ions occupying lattice positions. The valence electrons are able to move freely (or almost freely) through the lattice, forming an ‘electron gas’. The bonding force is electrostatic attraction between the positive metal ions and the electrons. The existence of free electrons accounts for the good electrical and thermal conductivities of metals. See also energy bands. Chemical Engineering A covalent bond between atoms in metals and alloys, in which the valence electrons are free to move through the crystal lattice structure. Geology and Earth Sciences A special type of covalent bond found in such solids as native copper. Every atom shares its electrons with each of its neighbours in turn. The sharing atoms must be able to move and so in metals they appear to be positive ions moving in a sea of electrons.
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