Talk:Transition metal
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Ca3+
"In fact Ca3+ has an ionisation enthalpy so high that it rarely occurs naturally."
Are you sure? I never, ever heard of naturally occurring Ca3+!
Sounds suspicious to me... --malbi
:I suspect this is true that it never occurs naturally. I think this paragraph should be reworked; it's too much about calcium and group II and not enough about transition metals. Olin
: I went and revised it. Olin
The periodic table of the transition elements
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| Group
!3 (III B) !4 (IV B) !5 (V B) !6 (VI B) !7 (VII B) !8 (VIII B) !9 (VIII B) !10 (VIII B) !11 (I B) !12 (II B) |
|---|
| Period 4
|Sc 21 |Ti 22 |V 23 |Cr 24 |Mn 25 |Fe 26 |Co 27 |Ni 28 |Cu 29 |Zn 30 |
| Period 5
|Y 39 |Zr 40 |Nb 41 |Mo 42 |Tc 43 |Ru 44 |Rh 45 |Pd 46 |Ag 47 |Cd 48 |
| Period 6
|L |Hf 72 |Ta 73 |W 74 |Re 75 |Os 76 |Ir 77 |Pt 78 |Au 79 |Hg 80 |
| Period 7
|A |Rf 104 |Db 105 |Sg 106 |Bh 107 |Hs 108 |Mt 109 |Ds 110 |Rg 111 |Cn 112 |