User:Dilu Thilakshi/sandbox

Cobalt, ₀₀Co
Cobalt
Pronunciation	/ˈkoʊbɒlt/ ⓘ
Standard atomic weight Ar°(Co)
	58.933194±0.000003; 58.933±0.001 (abridged);
Cobalt in the periodic table
	යකඩ ← cobalt → නිකල්
Group	group 9
Period	period 4
Block	d-block
Electron configuration	[Ar] 3d7 4s2
Physical properties
Phase at STP	solid
Atomic properties
Oxidation states	−3, −1, 0, +1, +2, +3, +4, +5 (an amphoteric oxide)
	Spectral lines of cobalt
Other properties
Natural occurrence	primordial
Isotopes of cobalt v; e;
	Category: Cobalt; view; talk; edit; \| references

This is the user sandbox of Dilu Thilakshi. A user sandbox is a subpage of the user's user page. It serves as a testing spot and page development space for the user and is not an encyclopedia article. Create or edit your own sandbox here.

Other sandboxes: Main sandbox | Template sandbox

Finished writing a draft article? Are you ready to request review of it by an experienced editor for possible inclusion in Wikipedia? Submit your draft for review!

^ "cobalt". Oxford English Dictionary (2nd ed.). Oxford University Press. 1989.
^ "Standard Atomic Weights: Cobalt". CIAAW. 2017.
^ Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; Böhlke, John K.; Chesson, Lesley A.; Coplen, Tyler B.; Ding, Tiping; Dunn, Philip J. H.; Gröning, Manfred; Holden, Norman E.; Meijer, Harro A. J. (2022-05-04). "Standard atomic weights of the elements 2021 (IUPAC Technical Report)". Pure and Applied Chemistry. doi:10.1515/pac-2019-0603. ISSN 1365-3075.
^ Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. pp. 1117–1119. ISBN 978-0-08-037941-8.
^ Kondev, F. G.; Wang, M.; Huang, W. J.; Naimi, S.; Audi, G. (2021). "The NUBASE2020 evaluation of nuclear properties" (PDF). Chinese Physics C. 45 (3): 030001. doi:10.1088/1674-1137/abddae.

[1] "cobalt". Oxford English Dictionary (2nd ed.). Oxford University Press. 1989.

[2] "Standard Atomic Weights: Cobalt". CIAAW. 2017.

[CIAAW2021-3] Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; Böhlke, John K.; Chesson, Lesley A.; Coplen, Tyler B.; Ding, Tiping; Dunn, Philip J. H.; Gröning, Manfred; Holden, Norman E.; Meijer, Harro A. J. (2022-05-04). "Standard atomic weights of the elements 2021 (IUPAC Technical Report)". Pure and Applied Chemistry. doi:10.1515/pac-2019-0603. ISSN 1365-3075.

[greenwood-4] Greenwood, Norman N.; Earnshaw, Alan (1997). Chemistry of the Elements (2nd ed.). Butterworth-Heinemann. pp. 1117–1119. ISBN 978-0-08-037941-8.

[NUBASE2020-5] Kondev, F. G.; Wang, M.; Huang, W. J.; Naimi, S.; Audi, G. (2021). "The NUBASE2020 evaluation of nuclear properties" (PDF). Chinese Physics C. 45 (3): 030001. doi:10.1088/1674-1137/abddae.

[1]

[2]

[3]

[4]

[5]