User:Double sharp/Crystallographic properties of the elements: Difference between revisions

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Revision as of 07:07, 28 January 2024 editDouble sharp (talk \| contribs)Autopatrolled, Extended confirmed users, Page movers, File movers, Pending changes reviewers102,065 edits ←Created page with '{{noindex}} Data from Arblaster (2018), ''Selected Values of the Crystallographic Properties of Elements''. The data is at 20°C for elements solid at that temperature. The melting point is used for all other elements, except He where it is given for the minimum of the melting curve (0.31524 K and 29.3113 bar for <sup>3</sup>He and 0.775 K and 25.316 bar for <sup>4</sup>He). {\| class="wikitable" \|}'		Revision as of 07:13, 28 January 2024 edit undoDouble sharp (talk \| contribs)Autopatrolled, Extended confirmed users, Page movers, File movers, Pending changes reviewers102,065 editsNo edit summaryNext edit →
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	Data from Arblaster (2018), ''Selected Values of the Crystallographic Properties of Elements''.		Data from Arblaster (2018), ''Selected Values of the Crystallographic Properties of Elements''.

	The data is at ~~20°C~~ for elements solid at that temperature. The melting point is used for all other elements, except He where it is given for the minimum of the melting curve (0.31524 K and 29.3113 bar for <sup>3</sup>He and 0.775 K and 25.316 bar for <sup>4</sup>He).		The data is at 293.15 K for elements solid at that temperature.

	{\| class="wikitable"		{\| class="wikitable"
			! ''Z''
			! Symbol
			! Structure
			! Pearson
			! Lattice parameters (nm)
			! Molar volume (cm<sup>3</sup> mol<sup>−1</sup>)
			! Density (kg m<sup>−3</sup>)
			! Notes
			\|-
			\| 1
			\| H (n-H<sub>2</sub>)
			\| hcp
			\| hP4
			\| ''a'' 0.37897<br>''c'' 0.61831
			\| 23.16
			\| 87.06
			\| triple point 13.95 K
			\|-
			\| 1
			\| D (n-D<sub>2</sub>)
			\| hcp
			\| hP4
			\| ''a'' 0.36362<br>''c'' 0.59252
			\| 20.43
			\| 197.1
			\| triple point 18.72 K
			\|-
			\| 2
			\| <sup>3</sup>He
			\| bcc
			\| cI2
			\| 0.4359
			\| 24.939
			\| 120.9
			\| melting curve minimum 0.31524 K, 29.3113 bar
			\|-
			\| 2
			\| <sup>4</sup>He
			\| hcp
			\| hP2
			\| ''a'' 0.3666<br>''c'' 0.5987
			\| 20.983
			\| 190.8
			\| melting curve minimum 0.775 K, 25.316 bar
	\|}		\|}

Revision as of 07:13, 28 January 2024

Data from Arblaster (2018), Selected Values of the Crystallographic Properties of Elements.

The data is at 293.15 K for elements solid at that temperature.

Z	Symbol	Structure	Pearson	Lattice parameters (nm)	Molar volume (cm mol)	Density (kg m)	Notes
1	H (n-H₂)	hcp	hP4	a 0.37897 c 0.61831	23.16	87.06	triple point 13.95 K
1	D (n-D₂)	hcp	hP4	a 0.36362 c 0.59252	20.43	197.1	triple point 18.72 K
2	He	bcc	cI2	0.4359	24.939	120.9	melting curve minimum 0.31524 K, 29.3113 bar
2	He	hcp	hP2	a 0.3666 c 0.5987	20.983	190.8	melting curve minimum 0.775 K, 25.316 bar