Home Atomism and Radioactive Substances by Ogawa Masataka: Introduction to Physical Chemistry by the Discoverer of Element Nipponium From Middle School Students Series (Japanese Edition)

Atomism and Radioactive Substances by Ogawa Masataka: Introduction to Physical Chemistry by the Discoverer of Element Nipponium From Middle School Students Series (Japanese Edition)

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File Size: 147 KB
Print Length: 40 pages
Simultaneous Device Usage: Unlimited
Publication Date: July 23, 2016
Sold by: Amazon Digital Services LLC
Language: Japanese
ASIN: B01J0DHRUS
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　今から100年以上前の1908年に、「新元素」を発見した日本人化学者がいました。その名は小川正孝。新元素は「ニッポニウム Np」と名付けられ、元素周期表にも掲載されましたが、追試に成功した研究者がいなかったため、次第に疑われるようになってしまったのです。しかし彼は一人、黙々と研究を続けました。・・・そして、ようやく最近になって、彼の発見したものが、確かに当時未発見の「新元素」であったことが確認されたのです。　本書は、そんな小川正孝により1920年に行なわれた一般・初学者向きの講演です。テーマは「放射性元素」。科学上の新発見が相次いだ二十世紀のはじめ。原子核の発見から10年足らず、陽子の発見から1年ほどしか経っていません。物質の構造が少しずつ明らかになり、常識がくつがえり、謎が解け、また新たな謎が生まれる。そんな興奮が伝わってくる講演です。　元素周期表の基本的な知識さえあれば、中学生や高校1年生程度で理解できるように、科学的な解説とエピソードなども紹介する詳しい注を付けました。原子の構造...

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