The d-block is a portion of the periodic table of the elements. The d-block contains those elements which have partially filled d-orbitals when in their ground states. The d-block elements are often also known as transition metals.
In the s-block and p-block of the periodic table, trends in properties across the periods are generally not observed: the most important trends tend to be vertically, down groups. However the d-block is notable in that horizontal trends across the periods do become important.
Although Lutetium and Lawrencium are in the d-block, they are not considered transition metals but a lanthanide and an actinide, respectively, according to IUPAC.[1] Group 12 elements are also in the d-block but are considered post-transition metals[2] if their d-subshell is completely filled.[1]
| Group → | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
|---|---|---|---|---|---|---|---|---|---|---|
| ↓ Period | ||||||||||
| 4 | 21 Sc |
22 Ti |
23 V |
24 Cr |
25 Mn |
26 Fe |
27 Co |
28 Ni |
29 Cu |
30 Zn |
| 5 | 39 Y |
40 Zr |
41 Nb |
42 Mo |
43 Tc |
44 Ru |
45 Rh |
46 Pd |
47 Ag |
48 Cd |
| 6 | 71 Lu |
72 Hf |
73 Ta |
74 W |
75 Re |
76 Os |
77 Ir |
78 Pt |
79 Au |
80 Hg |
| 7 | 103 Lr |
104 Rf |
105 Db |
106 Sg |
107 Bh |
108 Hs |
109 Mt |
110 Ds |
111 Rg |
112 Uub |
See also
References
- ^ a b IUPAC Provisional Recommendations for the Nomenclature of Inorganic Chemistry (2004) (online draft of an updated version of the "Red Book" IR 3-6)
- ^ "Post Transition Metal Chemistry Lecture 1" WebLearn - Oxford Campus, Department of Chemistry, public anonymous access, Michaelmas Term 2007, Prof. R.G. Egdell, Accessed December 2, 2007
|
||||||||||||||||||||
This entry is from Wikipedia, the leading user-contributed encyclopedia. It may not have been reviewed by professional editors (see full disclaimer)
