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Actinium (7267 bytes)
7: | colspan="2" align="center" | [[radium]] - '''actinium''' - [[thorium]] 18: | actinium, Ac, 89 130: '''Actinium''' is a [[chemical element]] in the [[periodic ta... 133: ...uranium]] ore contains about a tenth of a gram of actinium. 138: Actinium-225 is used in medicine to produce Bi-213 in a re... Actinide (1537 bytes) 7: | 89 || [[Actinium]] || Ac 11: | 91 || [[Protactinium]] || Pa 36: ...s the 14 [[chemical element]]s that lie between [[actinium]] and [[nobelium]] on the [[periodic table]] with... Rare earth (809 bytes) 4: ...], [[lutetium]], [[actinium]], [[thorium]], [[protactinium]], [[uranium]], [[neptunium]], [[plutonium]], [[a... Group element (829 bytes) 3: ...nthanides]]; and [[Actinium]], [[Thorium]], [[Protactinium]], [[Uranium]], [[Neptunium]], [[Plutonium]], [[A... Unbiunium (2220 bytes) 9: | rowspan="3" valign="center" | [[Actinium|Ac]]<br>'''Ubu'''<br><br> <br>&n... 41: '''Unbiunium''' (eka-actinium) is the temporary name of an undiscovered [[chemi... André-Louis Debierne (1051 bytes) 3: ...[[1899]], he discovered the radioactive element [[actinium]], as a result of continuing the work with [[pitc... Decay chain (1623 bytes) 7: ...uranium series, the [[thorium]] series, and the [[actinium]] series, representing three of these four classe... AC (1682 bytes) 10: ...isprint of '''Ac''', the chemical symbol for '''[[actinium]]''' Group 3 element (2110 bytes) 33: *[[actinium]] (89) - [[lawrencium]] (<FONT COLOR=RED>103</FON... List of elements by density (3537 bytes) 285: | [[Actinium]] 349: | [[Protactinium]] 1899 in science (1827 bytes) 18: *[[Actinium]] discovered by [[Andre Debierne]]. Atomic electron configuration table (25186 bytes) 103: <tr><td>89</td><td bgcolor="#FF99CC">[[Actinium]]</td><td bgcolor="#DDDDDD">2</td><td bgcolor="#D... 105: <tr><td>91</td><td bgcolor="#FF99CC">[[Protactinium]]</td><td bgcolor="#DDDDDD">2</td><td bgcolor="#D... Period 7 element (4619 bytes) 67: <td bgcolor="#ff99cc">89<br>[[Actinium|Ac]]</td> 69: <td bgcolor="#ff99cc">91<br>[[Protactinium|Pa]]</td> Valency (8286 bytes) 99: <tr><td>89</td><td></td><td>[[Actinium]]</td><td></td><td>3</td></tr> 101: <tr><td>91</td><td></td><td>[[Protactinium]]</td><td></td><td>4, 5</td></tr> 89 (number) (2574 bytes) 24: *The [[atomic number]] of [[actinium]] The Elements (song) (2858 bytes) 9: :And [[gold]], [[protactinium]] and [[indium]] and [[gallium]], 12: :There's [[yttrium]], [[ytterbium]], [[actinium]], [[rubidium]], Periodic table (electron configurations) (19730 bytes) 187: ...dth="5%" align="center" bgcolor="#ff99cc">89<br>[[Actinium|Ac]]<br> <sub><i>2<br> <br>1</i></sub></td> 189: ..."5%" align="center" bgcolor="#ff99cc">91<br>[[Protactinium|Pa]]<br> <sub><i>2<br>2<br>1</i></sub></td> List of elements by boiling point (3557 bytes) 70: <tr><td>[[Actinium]]<td>Ac<td>3200 88: <tr><td>[[Protactinium]]<td>Pa<td>4030 List of elements by atomic number (6919 bytes) 91: <tr><td>89</td><td>[[actinium]]</td><td>Ac</td></tr> 93: <tr><td>91</td><td>[[protactinium]]</td><td>Pa</td></tr> Periodic table (big) (12932 bytes) 181: ... style="background: rgb(208, 208, 255);"><small>[[actinium]]</small><br>89<br>Ac</td> 183: ...le="background: rgb(208, 208, 255);"><small>[[protactinium]]</small><br>91<br>Pa</td>
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