|
发表于 2007-10-11 16:42:31
|
显示全部楼层
Sb
元素符号:Sb
中文名称:锑
英文名称:Antimony
原子序数:51
原子量:121.8
外围电子排布:5s2 5p3
核外电子排布:2,8,18,18,5
常见化合价:-3,+3,+5
密度:6.684
溶点:630.74
沸点:1587
所属周期:5
所属族数:VA
原子半径:1.53
离子半径:0.78(+3)
共价半径:1.40
同位素及放射性:*Sb-121 Sb-123
发现人:Known to the ancients.
发现时间:
发现地点:
名称由来:Greek: anti and monos (not alone); symbol from mineral stibnite.
元素描述:Hard, brittle, silvery-white semimetal.
元素来源:Found in stibnite (Sb2S3) and in valentinite (Sb2O3).
元素用途:It is alloyed with other metals to increase their hardness. Also in the manufacture of a few special types of semiconductor devices. Also in plastics and chemicals. A few kinds of over-the-counter cold and flu remedies use antimony compounds. |
|