Timeline for Why does radium have a higher first ionisation energy than barium?
Current License: CC BY-SA 4.0
2 events
| when toggle format | what | by | license | comment | |
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| Jun 29, 2019 at 8:46 | history | edited | Mathew Mahindaratne | CC BY-SA 4.0 |
Edited to improve formatting.
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| Apr 28, 2013 at 11:41 | history | answered | Ben Norris | CC BY-SA 3.0 |