第43隻元素係Technetium
佢既化學符號係Te定Tc???
元素表第43既元素化學符號問題
2006-10-28 1:49 am
回答 (4)
2006-10-28 2:36 am
✔ 最佳答案
Technetium43
Tc
The essentials
Name: technetium
Symbol: Tc
Atomic number: 43
Atomic weight: [ 98 ]
CAS Registry ID: 7440-26-8
Group number: 7
Group name: (none)
Period number: 5
Block: d-block
參考: me
2006-10-29 7:09 am
係Tc,,,唔一定係用頭果兩個字黎命名架,,,
好似鎂咁,,,佢既英文係magnesium,,,但化學符號係Mg,,,
好似鎂咁,,,佢既英文係magnesium,,,但化學符號係Mg,,,
2006-10-28 1:52 am
ans: 化學符號係Tc
2006-10-28 1:51 am
Technetium is a chemical element that has the symbol Tc and the atomic number 43.
收錄日期: 2021-04-12 19:14:18
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https://hk.answers.yahoo.com/question/index?qid=20061027000051KK02510