為何一個元素與碳12作比較後, 就沒有單位?
為何說一個比較值沒有單位, 不太明白
麻煩舉一些例解答一下, 謝謝了
相對原子質量
2008-02-04 7:02 am
回答 (1)
2008-02-04 7:26 am
✔ 最佳答案
Relative means a:b or a/b.Therefore, the unit can be cancelled whereas both is deleted in the fraction. Remember your primary mathematics.
Lets say the element is A g. The carbon is 12 g.
The relative mass is A g / 12 g = A / 12.
參考: I am the King of Science.
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