第1个回答 2007-01-30
元素符号:Sn
中文名称:锡
英文名称:Tin
原子序数:50
原子量:118.7
外围电子排布:5s2 5p2
核外电子排布:2,8,18,18,4
常见化合价:+2,+4
密度:7.3
溶点:231.97
沸点:2602
所属周期:5
所属族数:IVA
原子半径:1.72
离子半径:0.71(+4)
共价半径:1.41
同位素及放射性:Sn-112 Sn-114 Sn-115 Sn-116 Sn-117 Sn-118 Sn-119 *Sn-120 Sn-122
发现人:Known to the ancients.
发现时间:
发现地点:
名称由来:Named after Etruscan god, Tinia; symbol from Latin: stannum (tin).
元素描述:Silvery-white, soft, malleable and ductile metal.
元素来源:Principally found in the ore cassiterite(SnO2) and stannine (Cu2FeSnS4).
元素用途:Used as a coating for steel cans since it is nontoxic and noncorrosive. Also in solder (33%Sn:67%Pb), bronze (20%Sn:80%Cu), and pewter. Stannous fluoride (SnF2), a compound of tin and fluorine is used in some toothpaste.本回答被网友采纳