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Oct 22 2006, 2:57 AM EDT
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Change: (Half(Half Life:Life: .5 ms) Rf - 257 (Half Life: 4.8 s) Rf - 258 (Half Life: 13 ms) Rf - 259 (Half Life: 3 s) Rf - 260 (Half Life: .3s) Rf - 261 (Half Life: 65s) Rf - 265 (Half Life: 13 h) My Electrons
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Oct 22 2006, 2:51 AM EDT
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Change: Rutherfordium!Rutherfordium! Hi, I'm the element, Rutherfordium! Because I am man-made and not naturally found in the environment, and I am only around for a little
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Oct 22 2006, 2:49 AM EDT
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Change: electrons.electrons. My electron configuration is[Rn] 5f ^ 14 . 6d ^ 2 . 7s ^ 2 My Properties My atomic number is 104. My atomic mass is 261. My color is probably metallic and silvery white or gray in appearance. My state at room temperature is solid
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Oct 22 2006, 2:37 AM EDT
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Change: Plutonium,Plutonium, Pu-242, and one of Neon,Neon, Ne-22. However, in 1969, researchers at Berkely, CA reported discovering me. Their experiements involved reaction high energy collision between Cf-249Cf-249 and C-12.C-12. They were also unable to reproduce the
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(Word count: 516)
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Oct 22 2006, 2:19 AM EDT
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Change: There were only format changes (bold, italics, etc.) in this version. See this version for details.
(Word count: 516)
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Oct 22 2006, 2:11 AM EDT
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Change: Rf - 265 (Half Life: 13 h) My Electrons I have 104 electrons. I have 2 valence electrons. My electron configuration is[Rn] 5f ^ 14 . 6d ^ 2 . 7s ^ 2 My Properties My atomic number is 104. My atomic mass is 261. My color
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(Word count: 516)
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Oct 22 2006, 1:59 AM EDT
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Change: There were only format changes (bold, italics, etc.) in this version. See this version for details.
(Word count: 492)
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Oct 22 2006, 1:46 AM EDT
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Change: Rf - 257 (Half Life: 4.8 s) Rf - 258 (Half Life: 13 ms) Rf - 259 (Half Life: 3 s) Rf - 260 (Half Life: .3s) Rf - 261 (Half Life: 65s) My Electrons I have 104 electrons. I have 2 valence electrons. My electron configuration is[Rn]
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Oct 22 2006, 1:28 AM EDT
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Change: Zirconium. Zirconium. My Compounds (My Friends!)Unfortunately, I don't have any friends. I do not form any compounds. My Story Only small amounts of me have ever been made. In 1964 in Dubna, Russia,
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Oct 22 2006, 1:23 AM EDT
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Change: Hi, I'm the element, Rutherfordium! Because I am man-made and not naturally found in the environment, and I am only around for a little while,
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Oct 22 2006, 1:12 AM EDT
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Change: song was written by Tom Lehrer in 1959, but Rutherfordium was discovered 10 years later. But now, in 2006, Rutherfordium IS known by Harvard. Atomic Number: 104 Atomic Mass: 261
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Oct 22 2006, 12:05 AM EDT
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Change: There were only format changes (bold, italics, etc.) in this version. See this version for details.
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Oct 22 2006, 12:01 AM EDT
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Change: There were only format changes (bold, italics, etc.) in this version. See this version for details.
(Word count: 390)
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Oct 21 2006, 11:21 PM EDT
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Change: There were only format changes (bold, italics, etc.) in this version. See this version for details.
(Word count: 390)
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Oct 21 2006, 11:20 PM EDT
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Change: Element SongHere's a fun video. Not only does he sing the names of the elements, but there are also pictures. However, Rutherfordium is not included. In the last line he sings, "These are the only ones that
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Oct 21 2006, 11:18 PM EDT
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Change: Here's a fun video. Not only does he sing the names of the elements, but there are also pictures. However, Rutherfordium is not included. In
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Oct 21 2006, 11:11 PM EDT
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Change: Here's a fun video. Not only does he sing the names of the elements, but there are also pictures. However, Rutherfordium is not included. In
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(Word count: 388)
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Oct 21 2006, 10:42 PM EDT
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Change: There were only format changes (bold, italics, etc.) in this version. See this version for details.
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Oct 21 2006, 10:40 PM EDT
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Change: Rutherford.Rutherford. My Jobs I have no uses known. However, my experimental finding was something new, something interesting. Even if I last for only a brief time, I have some significance. I can help theorists understand what really works in their theories. Atomic Number: 104 Atomic Mass: 261
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Oct 21 2006, 10:36 PM EDT
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Change: 0% of the human body, 0% of Earth, and 0% of the universe.I am a synthetic element and am not present in the environment at all. I am Rutherfordium! My Compounds (My Friends!) Unfortunately, I don't have any friends. I do not form any compounds. My Story Only
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(Word count: 298)
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