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| Highscores (25 registered players) | ||||
|---|---|---|---|---|
| Member | Score | Time | Date | |
| 1 | mn17 | 100% | 0:13.0 min. | 18 Aug, '19 |
| 2 | djskilled 3 | 100% | 0:17.4 min. | 16 Nov, '14 |
| 3 | joc3942 | 100% | 0:17.5 min. | 14 Oct, '14 |
| 4 | Hayden_003 | 100% | 0:18.5 min. | 11 Jan, '16 |
| 5 | Rumpleteazer | 100% | 0:19.1 min. | 12 Aug, '19 |
| 6 | ollipo | 100% | 0:21.1 min. | 13 Oct, '14 |
| 7 | For what its worth. | 100% | 0:21.5 min. | 18 Nov, '14 |
| 8 | makropulos | 100% | 0:22.3 min. | 18 Aug, '19 |
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This is an online quiz called Elements: Actinium
There is a printable worksheet available for download here so you can take the quiz with pen and paper.
Identify facts about the element Actinium
Key: Discovery/year, Name derivation, State (Room temperature), Periodic Table location, Melting/Boiling points (K), Electron configuration, Trivia
Note radioactivity clue relates to the Most Stable Isotope
Main image from http://www.periodictable.com
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