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Where is neptunium located?
Neptunium is a chemical element with the symbol Np and atomic number 93.A radioactive metallic element, neptunium is the first transuranic element and belongs to the group of the actinide series (Period VII, 5f-block). Uranium(92) is its predecessor.
What type of nuclear decay does Uranium undergo?
Uranium has a different decay chain/series for its different isotopes. Uranium 238 for example first decays to thorium 234 through alpha decay while U235 alpha decays to thorium 231. Both have different half lifes which can be found on a natural decay series chart for the said element. The thorium in either case then beta decays to another element.
What is the range of half-lives of different radioactive element?
It would be quite difficult to list all radioactive elements and their half lives in this area. Lithium 5 has a half life of about a trillionth of a second. Uranium 238 has a half life of about 4.7 billion years. Since the world is about 4.2 billion years, over half the Uranium 238 is still around. The first element in the Periodic Table, Hydrogen, has a radioactive form, Hydrogen 3. It has a half life of about Twelve and a half years. Helium has a radioactive form, Helium 5. It's half life is a trillionth of a second. Then you get to elements with different radioactive isotopes. You will need to look them up in a handbook. Tin is the element with the most isotopes.
What is the percentage of radioactive nuclei left after 3 half lives have passed?
12.5%
What is the first radioactive element number?
Of elements that have no stable isotopes, technetium has the lowest atomic number, which is 43.
Is uranium the first radioactive element?
Radioactivity is discovered on uranium.
Who discovered the first radioactive element?
Marie Curie. Uranium was discovered in 1789 by the German chemist Martin Heinrich Klaproth working in Berlin.
First element known to be radioactive?
Uranium is the first element known to be radioactive. It was discovered by Henri Becquerel in 1896.
Is francium a radioactive element?
Francium (Fr) is a natural radioactive element, extremely rare.
What is the decay element of uranium?
It is not yet discovered since all of the uranium isotopes are having half life for several millions of years. We would be able to find it after atleast 700 millions of years.
Is polonium most radioactive element?
no it is not i believe it is uranium uranium is only a mild alpha emitter, radium is most radioactive natural element, then polonium. The best candidate among the first 92 elements is probably astatine. All three of its naturally occurring isotopes have half-lives of less than a minute.
Why is uranium's element symbol U?
Because U is the first letter of the name uranium.
Give you the first man made radioactive element after uranium?
Edwin Mac Millan , Philip H. Abelson, 1940: Neptunium (atomic number 93).
What is the origin of francium?
Francium is a naturally occurring radioactive element that is produced as a decay product of uranium and thorium. It is found in tiny amounts in uranium and thorium ores. Francium was first discovered in 1939 by Marguerite Perey in France.
What radioactive isotope did the first atomic bomb contain?
The first atomic bomb, "Little Boy," contained uranium-235 as its radioactive isotope.
Where is neptunium located?
Neptunium is a chemical element with the symbol Np and atomic number 93.A radioactive metallic element, neptunium is the first transuranic element and belongs to the group of the actinide series (Period VII, 5f-block). Uranium(92) is its predecessor.
What type of nuclear decay does Uranium undergo?
Uranium has a different decay chain/series for its different isotopes. Uranium 238 for example first decays to thorium 234 through alpha decay while U235 alpha decays to thorium 231. Both have different half lifes which can be found on a natural decay series chart for the said element. The thorium in either case then beta decays to another element.
