元素表第43既元素化學符號問題

Technetium
43
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

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,,,

ans: 化學符號係Tc

Technetium is a chemical element that has the symbol Tc and the atomic number 43.