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Talk:Periodic table (crystal structure)

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Suggestions

[edit]
  • Try to make the page for all elements, not only for metals. Just say what crystal structure do the elements have at the melting point under normal pressure.
  • transform the usual crystal strycture section in a sort of legend.
  • add some intro.
  • get more referrences.

Nergaal (talk) 15:43, 3 August 2008 (UTC)[reply]

Nice proposal to generalize to non-metal elements. Look all the data up for melting temperature, please! :-) Btw: There are elements like He, C and As with doesn't melt at 1 bar -- okay we should take the sublimate temperature, I guess. Fore those lattices with have not a unique single lattice paramter (hcp, dhcp other unusal lattices), we should give the lattice paramater (or their ratios?). — Preceding unsigned comment added by 78.94.119.61 (talk) 14:40, 5 February 2012 (UTC)[reply]

The metalloids (C), Si, Ge, (alpha-Sn) could be added because all have the regular and well known diamond crystall structur. Also As may be added if we have already Sb in the table! Then As, Sb & Bi has similar crystal structure. 78.94.119.61 (talk) 15:42, 5 February 2012 (UTC)[reply]

But, currently Si and Ge are mislabeled as simple cubic. These need to be labeled as diamond cubic (which needs to be added to the legend). Hermanoere (talk) 21:48, 21 January 2016 (UTC)[reply]

  • The lattice parameter at normal conditions (where applicable) would be a nice addition to this table. Like masses are provided in a regular periodic table, here lattice parameters fit into a context, I think. 141.14.162.142 (talk) 09:56, 3 February 2020 (UTC) Karen Fidanyan[reply]

Title

[edit]

Wouln'd a better page title be more like: "Crystal structure of [the] chemical elements"? -DePiep (talk) 16:00, 6 April 2015 (UTC)[reply]

New Template

[edit]
Ac
89
fcc
Th
90
fcc
Pa
91
tetr
U
92
orth
Np
93
orth
Pu
94
mon
Am
95
dhcp
Cm
96
dhcp
Bk
97
dhcp
Cf
98
dhcp
Es
99
fcc
Fm
100
fcc
Md
101
fcc
No
102
hcp
 
Lr
103
hcp
Rf
104
hcp
Db
105
bcc
Sg
106
bcc
Bh
107
hcp
Hs
108
hcp
Mt
109
fcc
Ds
110
bcc
Rg
111
bcc
Cn
112
liquid
 
Nh
113
-
Fl
114
-
Mc
115
-
Lv
116
-
Ts
117
-
Og
118
-
  Alkali
metals
La
57
dhcp
Ce
58
fcc
Pr
59
dhcp
Nd
60
dhcp
Pm
61
dhcp
Sm
62
rho
Eu
63
bcc
Gd
64
hcp
Tb
65
hcp
Dy
66
hcp
Ho
67
hcp
Er
68
hcp
Tm
69
hcp
Yb
70
fcc
Lu
71
hcp
Hf
72
hcp
Ta
73
bcc
W
74
bcc
Re
75
hcp
Os
76
hcp
Ir
77
fcc
Pt
78
fcc
Au
79
fcc
Hg
80
liquid
Tl
81
hcp
Pb
82
fcc
Bi
83
rho
Po
84
sc
At
85
fcc
Rn
86
liquid
Fr
87
bcc
Ra
88
bcc
Y
39
hcp
Zr
40
hcp
Nb
41
bcc
Mo
42
bcc
Tc
43
hcp
Ru
44
hcp
Rh
45
fcc
Pd
46
fcc
Ag
47
fcc
Cd
48
hcp
In
49
tetr
Sn
50
tetr
Sb
51
rho
Te
52
hex
I
53
orth
Xe
54
liquid
Cs
55
bcc
Ba
56
bcc
Sc
21
hcp
Ti
22
hcp
V
23
bcc
Cr
24
bcc
Mn
25
bcc
Fe
26
bcc
Co
27
hcp
Ni
28
fcc
Cu
29
fcc
Zn
30
hcp
Ga
31
orth
Ge
32
dc
As
33
rho
Se
34
hex
Br
35
orth
Kr
36
liquid
Rb
37
bcc
Sr
38
fcc
Noble
Metals
Al
13
fcc
Si
14
dc
P
15
bcc
S
16
orth
Cl
17
liquid
Ar
18
liquid
K
19
bcc
Ca
20
fcc
B
5
rho
C
6
dc
N
7
liquid
O
8
liquid
F
9
liquid
Ne
10
liquid
Na
11
bcc
Mg
12
hcp
Noble
Gases
Li
3
bcc
Be
4
hcp
H2
2*1
liquid
He
2
liquid

Just granpa (talk) 11:10, 11 August 2017 (UTC)[reply]

Page cleanup

[edit]

The idea behind the page is interesting, but I think it needs some major work.

  • Issue #1: the table is a mix of structures at standard temperature and pressure, low temperature forms when elements are liquid or gaseous at room temperature, and theoretically predicted forms for unstable compounds. Having info on as many elements is good, but these should probably be separate tables for clarity, especially since the elements which are liquid or gas at STP are not clearly marked on the table (only in the text).
  • Issue #2: the table is a mix elements with structures which follow a simple Bravais lattice (FCC, BC, SC), specific more complex structure types (HCP, DC, DHCP), and elements with complex structures grouped by lattice system when the structure is actually different (e.g. iron's BCC structure is very different than manganese's BCC structure, but they are marked identically on the table) We should probably pick one level of granularity and stick with it (i.e. general lattice system, or detailed structure type)
  • Issue #3: some of the images used to explain the structures are inconsistent in a different way than issue #2. "Diamond cubic" is placed next to its Bravais lattice which is missing the motif of the lattice, but hexagonal close packed shows the detailed motif.
  • Issue #4: the division between common and uncommon structures seems pretty arbitrary and the elements' classification there doesn't line up with the colors of the table.
  • Issue #5: missing commonly given info like space groups or Pearson symbols, while containing extremely granular information about individual lattice parameters for some elements. The level of detail varies a lot.

I think it would probably be best to give a STP table labeled by structure type, with a second table for liquid/gas/unstable elements. We could organize the structure types by lattice system. Any other suggestions would be welcome.〈 Forbes72 | Talk 〉 02:36, 11 November 2023 (UTC)[reply]

@Forbes72: I agree with you. Double sharp (talk) 09:56, 11 November 2023 (UTC)[reply]

Regarding the alkali metals

[edit]

Computational study. Francium is still under investigation. Double sharp (talk) 04:36, 24 January 2024 (UTC)[reply]