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第一个元素周期表的发现

Was this the first periodic table?

也许你不信 这可是世界上第一张元素周期表
It may not look like it but this is the first periodic table.
1862年它由一个不出名的法国人
It was conceived by a little
亚历山大-埃米尔·德·尚古尔多阿设计出来
known French man called Alexandre-Emile deChancourtois in 1862.
这比德米特里·门捷列夫的
This was 7 years before
第一张元素周期表要早7年
Dmitri Mendeleev’s first periodic table which is the ancestor
而后者被公认为是元素周期率的鼻祖
of the one we all know today.
德·尚古尔多阿的聪明之处在于
The clever thing about de Chancourtois is that
将化学元素沿着圆柱体垂直排列
vertically down the cylinder the chemicalelements fall into groupings.
例如 我们可以找到
So here we have lithium,
锂 钠 钾这些我们今天称之为
sodium and potassium which we know
第IA族元素 也叫碱金属
today is all part of group 1 or the alkali
而且德·尚古尔多阿当时已经知道
metals and de Chancourtois would have known
这些元素拥有相近的化学属性
that these share similar chemical properties
例如它们都是软金属
such as there all soft metals,
能够很容易地被切割 而且它们能与水发生剧烈反应
they can be cut easily with a knife, they also react massively
这是所有周期表中共有的一个特征
with water. This is a feature commonto all periodic tables
而德·尚古尔多阿是第一个发现这个规律的人
but de Chancourtois was the first to do it.
那么为什么德·尚古尔多阿却藉藉无名
So why isn’t de Chancourtois better
为什么他没有因为
known and why didn’t he get the credit
首次提出元素周期表而获得殊荣呢?
for coming up with the first periodic table?
这很大原因是因为出版问题
Well it’s mostly due to a publication problem,
实际上出版商在出版时并未加入这个三维螺旋周期系统图表
the publisher didn’t actually include a diagram of his 3 dimensional spiral periodic system.
你完全可以想象这用文字几乎无法描述
Which as you can imagine would be very difficult to describe
结果这就使得这篇论文
in words and it made the paper
变得艰涩难懂
rather obscure and difficult to understandas a result.
因而 我们也就不难理解
So it’s not surprising it took
直到30年后 德·尚古尔多阿的贡献才被人们发现
30 years for his contribution to be discovered.
德·尚古尔多阿是19世纪60年代提出
de Chancourtois was one of 6 people to come up with
元素周期表的六人之一
a periodic table in the 1860’s
并且在1860年发生了一起关键性事件
and the key event which paved the way
为这些想法铺平了道路
for these ideas was in 1860
全世界主要的化学家聚到一起规定
when all the worlds leading chemist came together to come up
所有化学元素的
with standard barriers of all of
标准命名方式
the chemical elements.
这个体系的雏形实际上是
This model of the system was actually made
在1925年由科学博物馆所创立
by the Science Museum in 1925,
早于他们最早展示的元素周期表
ahead of their earliest display on theperiodic table.
这可能是第一次
And it’s probably the very
实现德·尚古尔多阿体系的物质化
first physical realisation of de Chancourtoissystem.
科学博物馆对原始的体系作出了
The Science Museum changed a few details
一些细节上的改变
from the original system.
比如按英语名称确定了氮元素符号
For example herethey’ve anglicised one of the elements we
我们现在知道用N表示
know today is N for nitrogen.
而在德·尚古尔多阿的原始体系中AZ代表氮
but in de Chancourtois original system he had it as AZ for azote
作为术语被他名声赫赫的同胞安托万·拉瓦锡所引进
which as the term introduced by his country man the famous Antoine Lavoisier.
另一个不同是它只包含体系的前三个元素
Another difference is that it only includes the top third
它只停留在锌
of the system, it stops down here at
因此 原始的体系中只有三个元素被取名
zinc so the original would have be three timesthe hight.
原始体系中
The original system would have
碲本应该处在中间
had tuluriam at it’s half way point.
也正是因为这个元素
And itwas for this element that de Chancourtois
德·尚古尔多阿命名了整个体系
named the whole system.
这个元素周期表的历史令你感到
This object and it’s history makes you wonder
如果德·尚古尔多阿的贡献
that if de Chancourtois
在那时就被认可
contribution had been recognized
大概他现在已经
at the time perhaps he would have been a
像门捷列夫一样家喻户晓了
a house hold name like Mendeleev.

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视频概述

众所周知的门捷列夫元素周期表却并不是世界上第一个元素周期表,那么第一个元素周期表又长什么样呢?

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视频来源

https://www.youtube.com/watch?v=101JghEKQFE

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