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  Encyclopedia of Keywords > Nature > Chemistry > Chemical Elements > Actinium   Michael Charnine

Keywords and Sections
URANIUM ORE
ACTINIUM
INTENSE RADIOACTIVITY
INDEPENDENTLY DISCOVERED ACTINIUM
WHO SEPARATED
RADIOACTIVE
ACTINIDE
NAME GIVEN
DECAY PRODUCTS
ALPHA DECAY
PERIODIC TABLE
SERIES
NATURALLY
AC
Review of Short Phrases and Links

    This Review contains major "Actinium"- related terms, short phrases and links grouped together in the form of Encyclopedia article.

Definitions

  1. Actinium is a silver-white metal with a cubic crystalline structure. (Web site)
  2. Actinium is a radioactive element with the symbol. (Web site)
  3. Actinium is a chemical element in the periodic table that has the symbol Ac and atomic number 89.
  4. Actinium is a silvery, radioactive, metallic element. (Web site)
  5. Actinium is a radioactive trivalent element that resembles lanthanum in chemical properties and is found especially in pitchblende. (Web site)

Uranium Ore

  1. One ton of uranium ore contains about a tenth of a gram of actinium.
  2. Actinium is found in trace amounts in uranium ore, but more commonly is made in milligram amounts by the neutron irradiation of 226 Ra in a nuclear reactor. (Web site)
  3. Actinium is found only in traces in uranium ores as 227 Ac, an -- and -- emitter with a half-life of 21.773 years.

Actinium

  1. Definitions of actinium at Dictionary.com.
  2. Actinium metal has been prepared by the reduction of actinium fluoride with lithium vapor at about 1100 to 1300-degrees C. (Web site)
  3. Only 231 Pa, the parent of actinium, 234 Pa, and 233 Pa occur in nature. (Web site)
  4. Actinium has no significant commercial applications, although it is used in the production of neutrons. (Web site)
  5. External links Wikimedia Commons has media related to: Actinium Look up actinium in Wiktionary, the free dictionary.

Intense Radioactivity

  1. Due to its intense radioactivity, Actinium glows in the dark with an eerie blue light.
  2. Due to its intense radioactivity, Actinium glows in the dark with a pale blue light.

Independently Discovered Actinium

  1. Friedrich Otto Giesel independently discovered actinium in 1902. (Web site)
  2. Friedrich Oskar Giesel independently discovered actinium in 1902[3] as a substance being similar to lanthanum and called it "emanium" in 1904[4]. (Web site)

Who Separated

  1. History Actinium was discovered in 1899 by Andr--Louis Debierne, a French chemist, who separated it from pitchblende. (Web site)
  2. The word actinium comes from the Greek aktis, aktinos, meaning beam or ray. (Web site)
  3. Beryllium is sometimes used in neutron sources, in which the beryllium is mixed with an alpha emmiter such as polonium 210, radium 226, or actinium 227.
  4. History Actinium was discovered in 1899 by Andr?Louis Debierne, a French chemist, who separated it from pitchblende.

Radioactive

  1. The element was discovered in 1939 by Marguerite Perey at the Curie Institute in Paris as a product of the radioactive disintegration of actinium. (Web site)
  2. Astatine, francium, actinium, and protactinium are irritating to element collectors.
  3. Perey discovered a type of beta activity that was not quite like that of any other known isotope while working with the radioactive element actinium. (Web site)

Actinide

  1. The actinide series derives its name from the first element in the series, actinium. (Web site)
  2. Nobelium is a member of the actinide series, which stretches from actinium (Ac) to lawrencium (Lr).
  3. The actinides get their name from element 89, actinium, which is sometimes considered the first member of the family.

Name Given

  1. Name given at one time to 219 Rn, an isotope of radon identified in the decay chain of actinium. (Web site)
  2. AcA Actinium A 84 From actinium and A. Placeholder name given at one time to 215 Po, an isotope of polonium identified in the decay chain of actinium. (Web site)
  3. AcC Actinium C 83 From actinium and C. Placeholder name given at one time to 211 Bi, an isotope of bismuth identified in the decay chain of actinium. (Web site)
  4. AcC" Actinium C" 81 From actinium and C ". Placeholder name given at one time to 207 Tl, an isotope of thallium identified in the decay chain of actinium. (Web site)

Decay Products

  1. The other seven isotopes of actinium have very short half-lives ranging from 10 days to less than 1 min. (Web site)
  2. Notable Characteristics Actinium is a silvery radioactive metallic element. (Web site)
  3. She found it while analyzing the radioactive decay products of actinium.

Alpha Decay

  1. Francium is the heaviest alkali metal and occurs as a result of actinium 's alpha decay and can be artificially made by bombarding thorium with protons.
  2. The shortest-lived isotope of actinium is 217 Ac which decays through alpha decay and electron capture. (Web site)
  3. Protactinium has been called the "mother" of actinium, which is formed by the alpha decay of protactinium. (Web site)

Periodic Table

  1. The chemical behavior of actinium is similar to that of the rare earth lanthanum.
  2. The isotopes of actinium range in atomic weight from 206 amu (206-actinium) to 234 amu (234-actinium). (Web site)
  3. Actinium is in group IIIb of the periodic table. (Web site)
  4. Post a question or answer questions about "actinium" at WikiAnswers.
  5. A periodic table of elements is linked to comic book references to atoms from actinium to zir-conium, and all the `iums in between.

Series

  1. Members of the series are often called actinides, although actinium (at. (Web site)
  2. It is likely that the actinium series is related to that of radium. (Web site)

Naturally

  1. Naturally occurring actinium is composed of 1 radioactive isotope; 227 Ac. (Web site)
  2. Isotopes Naturally occurring actinium is composed of 1 radioactive isotope; with 227-Ac being the most abundant (100% natural abundance). (Web site)
  3. It is found naturally in uranium ores and actinium is 150 times more radioactive than radium. (Web site)

Ac

  1. Actinium also has 2 meta state s. (Web site)
  2. Say what? Actinium is pronounced as ak-TIN-i-em .
  3. Name restricted at one time to 227 Ac, an isotope of actinium. (Web site)
  4. MsTh 2 Mesothorium 2 89 Name given at one time to 228 Ac, an isotope of actinium. (Web site)
  5. We've sorted through the top Eka Actinium sites for you.

Categories

  1. Encyclopedia of Keywords > Nature > Chemistry > Chemical Elements
  2. Encyclopedia of Keywords > Nature > Matter > Periodic Table
  3. Glossaries > Glossary of Chemical Elements /
  4. Books about "Actinium" in Amazon.com

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  Short phrases about "Actinium"
  Originally created: May 07, 2008.
  Links checked: May 31, 2013.
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