Chemistry

👨🏻‍🏫 學術台化學

[匿名]

2011-08-03 9:37 pm

Does all the things compose of 118 elements as periodic table? (Sorry, I didn't study chemistry before). Thanks!

回答 (4)

Lam

2011-08-03 9:57 pm

✔ 最佳答案

yes, most substances exist as compounds(which are composed of the elements in the periodic table. e.g. water(composed of hydrogen and oxygen), rust(composed MAINLY iron and oxygen)

Only some substances exsist as elements, e.g. diamond, which is carbon, iron, aluminium...........etc.

參考: me

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[匿名]

2011-08-05 9:27 am

thank you!

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