Kr
元素符号:Kr
中文名称:氪
英文名称:Krypton
原子序数:36
原子量:83.80
外围电子排布:4s2 4p6
核外电子排布:2,8,18,8
常见化合价:0
密度:0.003708
溶点:-156.6
沸点:-152.3
所属周期:4
所属族数:0
原子半径:1.03
离子半径:
共价半径:1.12
同位素及放射性:Kr-78 Kr-80 Kr-82 Kr-83 *Kr-84 Kr-86
发现人:Sir William Ramsey, M.W. Travers
发现时间:1898
发现地点:英国
名称由来:Greek: kryptos (hidden).
元素描述:Colorless, odorless, tasteless rare noble gas.
元素来源:Forms 1 millionth of the atmosphere. Obtained from production of liquid air.
元素用途:Used in lighting products. Some is used as inert filler-gas in incandescent bulbs. Some is mixed with argon in fluorescent lamps. The most important use is in flashing stroboscopic lamps that outline airport runways.