Ho
元素符号:Ho
中文名称:钬
英文名称:Holmium
原子序数:67
原子量:164.9
外围电子排布:4f11 6s2
核外电子排布:2,8,18,29,8,2
常见化合价:+3
密度:8.8
溶点:1474
沸点:2700
所属周期:6
所属族数:IIIB
原子半径:2.47
离子半径:
共价半径:1.58
同位素及放射性:Ho-165
发现人:J.L. Soret
发现时间:1878
发现地点:瑞士
名称由来:From Holmia, the Latinized name for Stockholm, 瑞典.
元素描述:Fairly soft, malleable, lustrous, silvery metal.
元素来源:Occurs in gadolinite. Most often from monazite which is often 50% rare earth and typically 0.05% holmium.
元素用途:It has very few practical applications; however, it has some unusual magnetic properties that offer some hope for future applications.