元素是什麼?
回答 (2)
2007-09-16 7:44 pm
An element is a subatance that cannot be broken down into anything simplier by chemical method.
For example, Hydrogen and oxygen are elements while Water is not since water can be decomposed into Hydrogen and oxygen through electrolysis
For example, Hydrogen and oxygen are elements while Water is not since water can be decomposed into Hydrogen and oxygen through electrolysis
2007-09-16 6:14 pm
ｔｈｅ ｅｌｅｍｅｎｔ ｉｓ ｔｈｅ ｓｕｂｓｔａｎｃｅ ｔｈａｔ
ｈａｓ ｏｎｌｙ ｏｎｅ ｋｉｎｄ ｏｆ ａｔｏｍ．
元素是不能用任何化學方法分解更簡單物質的純淨物質
ｈａｓ ｏｎｌｙ ｏｎｅ ｋｉｎｄ ｏｆ ａｔｏｍ．
元素是不能用任何化學方法分解更簡單物質的純淨物質
收錄日期: 2021-04-23 22:14:08
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070916000051KK00910