24小时热门版块排行榜

返回列表

当前主题已经存档。

[交流] 一种新的元素周期表－化学银河系

最近，一英国科学家绘制了一种新的元素周期表，有点儿意思，建议大家看一下。
可以在google中输入Chemical Galaxy

回复此楼

» 猜你喜欢

science advances的AAAS系统上返修已经有0人回复
science advances的AAAS系统上返修问题已经有4人回复
有机高分子材料论文润色/翻译怎么收费? 已经有290人回复
LDPE黑十字为什么那么大已经有0人回复
西南交通大学医学院2027年接收推荐免试攻读研究生（含直博生）已经有159人回复
西南交通大学医学院2027年接收推荐免试攻读研究生（含直博生）已经有159人回复
西南交通大学医学院2027年接收推荐免试攻读研究生（含直博生）已经有157人回复
西南交通大学医学院2027年接收推荐免试攻读研究生（含直博生）已经有152人回复
博士申请已经有15人回复
【中科院杭州医学研究所27级博士招生】化学分析/生物材料与器件方向已经有15人回复
静电纺丝膜厚度问题已经有94人回复

1楼 2008-01-08 11:25:35

已阅回复此楼关注TA 给TA发消息送TA红花 TA的回帖

daiqiguang

荣誉版主 (知名作家)

应助: 4 (幼儿园)
贵宾: 3.1
金币: 1375.6
散金: 104
红花: 29
帖子: 5488
在线: 566.8小时
虫号: 186979
注册: 2006-02-16
性别: GG
专业: 工业催化/材料、环境催化
管辖: 催化

http://www.chemicalgalaxy.co.uk/

Chemical Galaxy

A New Vision of the Periodic Table of the Elements

The matter in the world about us is almost entirely made from 83 elements, which differ from each other by the positive electric charge on their central nucleus and hence the number of electrons they are able to attract. Another 10 elements exist in trace quantities as unstable products of the radioactive breakdown of the two heaviest elements, and another 20 elements have been made in the laboratory.

Chemists discovered in the 1860s that if the elements are arranged in the order of the mass of their atoms (or as later realized, the charge on their nucleus), chemical characteristics recur regularly. Dmitri Mendeleyev in 1869 published his Periodic Table, in which he arranged the elements then known in rows and columns to show this regularity, forecasting the discovery of missing elements. This was a convenient way to present the information, but he recognized that it did not fully represent the overall pattern because it broke up the sequence. He thought the ideal would be a cylindrical helix, but that needs three dimensions.

Many chemists before and after Mendeleyev have proposed a spiral image, to get the advantages of a helix in two dimensions. My Chemical Galaxy is the latest of these versions, using a starry pathway to link the elements and to express the astronomical reach of chemistry. The intention is not to replace the familiar table, but to complement it and at the same time to stimulate the imagination and to evoke wonder at the order underlying the universe.

[ Last edited by daiqiguang on 2008-1-15 at 12:56 ]