Chemical Element #89: Actinium (Ac)
Atomic Number: 89, Element Symbol: Ac, Element Name: Actinium, Atomic Mass: 227.02775 u.
Detailed Properties:
| Atomic Number: | 89 |
| Element Symbol: | Ac |
| Element Name: | Actinium |
| Electron Configuration: | [Rn]7s26d1 |
| Atomic Mass: | 227.027750 u |
| Melting Point: | 1324.00 K |
| Boiling Point: | 3471.00 K |
Stable Isotopes:
| Isotope | Mass | Abundance |
| 227Ac | 227.027752 | Unknown |
✍: FYIcenter.com
2022-07-06, 882👍, 1💬
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Atomic Number: 90, Element Symbol: Th, Element Name: Thorium, Atomic Mass: 232.038 u. 2022-05-05, 1039🔥, 0💬
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Atomic Number: 88, Element Symbol: Ra, Element Name: Radium, Atomic Mass: 226.02541 u. 2022-07-06, 1027🔥, 1💬
Chemical Element #91: Protactinium (Pa)
Atomic Number: 91, Element Symbol: Pa, Element Name: Protactinium, Atomic Mass: 231.0359 u. 2022-05-01, 926🔥, 0💬
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Atomic Number: 86, Element Symbol: Rn, Element Name: Radon, Atomic Mass: 222.01758 u. 2022-07-01, 904🔥, 0💬
Chemical Element #92: Uranium (U)
Atomic Number: 92, Element Symbol: U, Element Name: Uranium, Atomic Mass: 238.0289 u. 2022-05-01, 893🔥, 0💬
Chemical Element #89: Actinium (Ac)
Atomic Number: 89, Element Symbol: Ac, Element Name: Actinium, Atomic Mass: 227.02775 u. 2022-07-06, 883🔥, 1💬
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Chemical Element #85: Astatine (At)
Atomic Number: 85, Element Symbol: At, Element Name: Astatine, Atomic Mass: 209.98715 u. 2022-07-06, 793🔥, 1💬