sn


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Sn,

symbol for the element tintin,
metallic chemical element; symbol Sn [Lat. stannum]; at. no. 50; at. wt. 118.710; m.p. 231.9681°C;; b.p. 2,270°C;; sp. gr. 5.75 (gray), 7.3 (white); valence +2 or +4. Tin exhibits allotropy; above 13.
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Sn

(chemistry)
tin

sn

(networking)
The country code for Senegal.

SN

(1) (Serial/Number) Common shorthand for serial number.

(2) (Signal/Noise) As in "s/n ratio." See signal-to-noise ratio.

(3) See shared nothing.