化學要唔要背哂個百幾個元素周期表
回答 (5)
2009-07-25 5:41 am
✔ 最佳答案
我suggest背頭三十個, 惰性氣體,鹵素, 鉛, 汞, 以我個人經驗, 這幾十個最常用, 記了查元素表時也較方便, 記得在那就不用花時間找 本人只消一星期就能牢牢記住頭四十個, 因為真的很容易記
參考: 現在背到70了
2009-07-28 10:50 pm
If你係想讀化學系ge,咁你就要參考大學需用ge元素,但真正用到ge得三十幾個
2009-07-28 6:17 am
No.
It is not necessary to recite all those elements.
There is ONE periodic table
whereas there are over a hundred elements.
I agree that remembering the first twenty is enough.
And, it is true that the table will be shown in open exams.
It is not necessary to recite all those elements.
There is ONE periodic table
whereas there are over a hundred elements.
I agree that remembering the first twenty is enough.
And, it is true that the table will be shown in open exams.
2009-07-24 11:10 pm
唔洗...如果你係去到ce level o既話....
同埋你出去公開試.佢都會比埋你
不過我個人suggest你背頭20個o既英文全寫 簡寫 排列
希望幫到你xd
同埋你出去公開試.佢都會比埋你
不過我個人suggest你背頭20個o既英文全寫 簡寫 排列
希望幫到你xd
參考: 自己
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