Atomic radius
noun
the radius of an atom; the distance from the atomic nucleus to the outermost stable electron orbital in a atom at equilibrium; also, one-half the distance between nuclei of atoms of the same element, when the atoms are bound by a single covalent bond or are in a metallic crystal
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atomic spectrum atomic spectrum The range of characteristic frequencies of electromagnetic radiation that are readily absorbed and emitted by an atom. The atomic spectrum is an effect of the quantized orbits of electrons around the atom. An electron can jump from one fixed orbital to another: if the orbital it jumps to has a higher […]
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