化學元素????
回答 (2)
2007-05-30 9:25 pm
✔ 最佳答案
I know only three elements, they are potassium, sodium & megnesium.If you drop one of them into water, it will ignite and give a colour flame. It will vibrate on the water surface. The reaction is vigorous.
Each of them give an unique colour of flame.
收錄日期: 2021-04-12 20:25:43
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070530000051KK01339