Beta-naphthyl radical
See under naphthyl.
Also called alpha-naphthyl group, alpha-naphthyl radical. the univalent group C 1 0 H 7 –, having a replaceable hydrogen atom in the first, or alpha, position; 1-naphthyl group.
Also called beta-naphthyl group, beta-naphthyl radical. the univalent group C 1 0 H 7 –, having a replaceable hydrogen atom in the second, or beta, position; 2-naphthyl group.
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beta radiation beta radiation [(bay-tuh)] Note: Beta radiation, unlike alpha radiation, has some penetrating power and can pass through clothing and wooden walls.
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a stream of beta particles. Historical Examples The Breath of Life John Burroughs noun a stream of beta particles beta ray A stream of beta particles.