14 May 2024

• curprev 21:2721:27, 14 May 2024‎ InternetArchiveBot talk contribs‎ 51,314 bytes +175‎ Rescuing 1 sources and tagging 0 as dead.) #IABot (v2.0.9.5 undo

12 May 2024

• curprev 20:0320:03, 12 May 2024‎ Citation bot talk contribs‎ 51,139 bytes +204‎ Altered issue. Add: issue, hdl, bibcode. Formatted dashes. | Use this bot. Report bugs. | Suggested by Whoop whoop pull up | Category:Protactinium | #UCB_Category 1/2 undo

11 April 2024

• curprev 06:2106:21, 11 April 2024‎ 171.233.144.157 talk‎ 50,935 bytes 0‎ →‎Applications: spelling mistake undo Tags: Mobile edit Mobile web edit

22 March 2024

• curprev 03:2803:28, 22 March 2024‎ Michael7604 talk contribs‎ 50,935 bytes +32‎ →‎Chemical compounds: added main article undo

18 March 2024

• curprev 19:1819:18, 18 March 2024‎ InternetArchiveBot talk contribs‎ 50,903 bytes +148‎ Rescuing 1 sources and tagging 0 as dead.) #IABot (v2.0.9.5) (The Herald - 18146 undo

17 March 2024

• curprev 13:3613:36, 17 March 2024‎ Nucleus hydro elemon talk contribs‎ 50,755 bytes +91‎ No edit summary undo

21 February 2024

• curprev 13:5413:54, 21 February 2024‎ Vsmith talk contribs‎ m 50,664 bytes −1‎ Reverted edit by 49.196.217.22 (talk) to last version by B M Moritz undo Tag: Rollback
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9 February 2024

• curprev 08:5208:52, 9 February 2024‎ B M Moritz talk contribs‎ m 50,664 bytes −168‎ It is incorrect that Meitner called the new element "protoactinium", in her 1918 paper, she clearly says "protactinium" (the article is in German). Please also see Paweł Miśkowiec, Foundations of Chemistry (2023) 25:235–251 https://doi.org/10.1007/s10698-022-09452-9 undo

31 December 2023

• curprev 07:4707:47, 31 December 2023‎ Grendon84 talk contribs‎ 50,832 bytes +735‎ various changes to grammar and sentence structure undo

27 December 2023

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14 December 2023

• curprev 12:5312:53, 14 December 2023‎ Praseodymium-141 talk contribs‎ 50,096 bytes −22‎ →‎Physical and chemical properties undo Tag: 2017 wikitext editor

2 December 2023

• curprev 19:0019:00, 2 December 2023‎ Citation bot talk contribs‎ 50,118 bytes +14‎ Alter: title. Add: issue. | Use this bot. Report bugs. | #UCB_CommandLine undo

29 November 2023

• curprev 03:3703:37, 29 November 2023‎ Jumpmed talk contribs‎ m 50,104 bytes −18‎ Grammar, syntax, and structure. undo Tags: Visual edit Mobile edit Mobile web edit
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17 November 2023

• curprev 21:1221:12, 17 November 2023‎ Michael D. Turnbull talk contribs‎ 50,105 bytes +6‎ →‎top: Re-bold symbol: see WT:WikiProject Elements undo

12 November 2023

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20 October 2023

• curprev 17:5617:56, 20 October 2023‎ Thincat talk contribs‎ 50,108 bytes +532‎ →‎History: protoactinium undo

9 October 2023

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9 September 2023

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5 September 2023

• curprev 01:2701:27, 5 September 2023‎ Dirac66 talk contribs‎ m 49,556 bytes +1‎ References says "of actinium" explicitly undo

4 September 2023

• curprev 22:1222:12, 4 September 2023‎ Dirac66 talk contribs‎ 49,555 bytes +273‎ Completed details of bare URL reference for new name. undo

28 August 2023

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26 August 2023

• curprev 05:0005:00, 26 August 2023‎ Citation bot talk contribs‎ 49,283 bytes −167‎ Removed proxy/dead URL that duplicated identifier. Removed access-date with no URL. Removed parameters. | Use this bot. Report bugs. | #UCB_CommandLine undo

13 August 2023

• curprev 10:0410:04, 13 August 2023‎ OAbot talk contribs‎ m 49,450 bytes +17‎ Open access bot: doi added to citation with #oabot. undo

25 June 2023

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18 June 2023

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8 May 2023

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21 April 2023

• curprev 20:4520:45, 21 April 2023‎ DePiep talk contribs‎ 49,089 bytes −8‎ Undid revision 1150666624 by Praseodymium-141 (talk) All right but check Chem2 by Preview. parameters need change undo Tag: Undo

19 April 2023

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18 April 2023

• curprev 13:5113:51, 18 April 2023‎ Dekonradifier talk contribs‎ m 49,089 bytes +16‎ mentioned the element's radioactivity earlier in the introduction undo

11 April 2023

• curprev 03:1203:12, 11 April 2023‎ InternetArchiveBot talk contribs‎ 49,073 bytes +202‎ Rescuing 1 sources and tagging 0 as dead.) #IABot (v2.0.9.3) (Materialscientist - 13189 undo

31 March 2023

• curprev 10:1010:10, 31 March 2023‎ Citation bot talk contribs‎ 48,871 bytes +58‎ Add: bibcode. | Use this bot. Report bugs. | Suggested by Spinixster | Linked from User:Materialscientist | #UCB_webform_linked 60/85 undo

21 March 2023

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5 March 2023

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21 February 2023

• curprev 11:1211:12, 21 February 2023‎ Citation bot talk contribs‎ 48,809 bytes +16‎ Add: s2cid. | Use this bot. Report bugs. | Suggested by Corvus florensis | #UCB_webform 3467/3500 undo

17 February 2023

• curprev 15:5715:57, 17 February 2023‎ ComplexRational talk contribs‎ 48,793 bytes +56‎ →‎Nuclear fission: ce undo
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• curprev 03:2103:21, 17 February 2023‎ Grendon84 talk contribs‎ 48,754 bytes +1,091‎ added information for fission reactions involving the two most common isotopes of Pa under new subsection of Isotopes undo Tag: Visual edit: Switched

2 January 2023

• curprev 20:3720:37, 2 January 2023‎ ComplexRational talk contribs‎ 47,663 bytes +5‎ only 29 isotopes per NUBASE2020 and literature undo