MATTER問題(10點)

用戶172137

2006-11-25 10:25 pm

Atom,Subatomic particles等東西都是have mass and occupy space 的,

理論上來說它們都是matter,

根據我本chem text book所說:

「matter can be classified into pure substances and mixtures,而pure substances can be classified into elements and compounds」,

而atom,subatomic particles等東西不是element(我指單一的atom).不是compound,更不是mixture.

莫非它們是pure substance 同mixture以外的matter?會是什麼呢?

(請用中文回答,贈10點)

回答 (1)

man

2006-11-26 1:29 am

✔ 最佳答案

Atom,Subatomic particles 呢d都係微觀世界 micro-view 裡面
matter, pure substances, mixtures, elements, compounds 呢d都係宏觀世界 macro-view裡面, 肉眼睇到

你上面所想o既...係你用左macro-view o既concept 去代入, 解釋micro-view o既事物...唔係話錯, 不過好難正確地解釋

就用金黎做個例子, 佢係element, 即係matter啦
分開兩半, 兩塊金, 都係element, 係matter
再分四份, 四塊金, 都係element, 係matter
一直分x 咁多份, 好似金沙咁細,都係element, 係matter!
再分成金o既atom, 都係element, 係matter!
不過, 人肉眼見唔到, 用儀器觀測之下, 再唔係平時見到o既一塊金o既形狀, 所以稱之為particle, atom

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