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Actinides

Presented by: Mallory Rush. Actinides. Facts about Actinides. Rare Earth metals Named after actinium, the first element in the group Consists of fifteen elements, numbers 89-103 All elements in this family are radioactive,

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Actinides

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  1. Presented by: Mallory Rush Actinides

  2. Facts about Actinides • Rare Earth metals • Named after actinium, the first element in the group • Consists of fifteen elements, numbers 89-103 • All elements in this family are radioactive, • Some aren't found in nature,all higher atomic numbered elements are created in labs

  3. Cont. facts about actinides • The elements higher than 92 are called transuranium elements. • Because of the arrangement of their orbital electrons, they are chemically similar to one another and also to the lanthanides. • Thorium, protactinium, uranium, and very small amounts of actinium and plutonium are found in nature. The other actinides, along with most plutonium, are produced artificially in nuclear reactors and particle accelerators.

  4. Cont. • Uranium, plutonium, and thorium are used to produce nuclear energy. • Thorium is also used as an alloying agent. • Other actinides have applications in nuclear research, medicine, and industry.

  5. Meet the family

  6. Uses of actinides • Cancer therapy • Analytical chemistry • Basic research in the study of chemical structures and mechanisms

  7. Thorium (Th) • was discovered by Berzelius in 1828 • Named after the Norse god of thunder, Thor • is a gray, radioactive metal which is fairly abundant in the Earth's crust

  8. Plutonium (Pu) • Discovered by Seaborg in 1941 • Named after the planet Pluto • piece of plutonium about the size of a softball would feel hot to the touch because of the high level of alpha particle radiation given off.

  9. the heat being directly converted into electricity by a special device Cont. • A somewhat larger piece of the metal would boil water within minutes. • Plutonium is occasionally used in deep-space probes as a source of energy (too far from the sun for effective solar power),

  10. Neptunium (Np) • Named after the planet Neptune • was the first of the transuranium elements to be manufactured

  11. Uranium (U) • Named after the planet Uranus • discovered in 1789 by Klaproth • pure metal is heavy, silver, and lustrous • tarnishes slowly in air and reacts with boiling water

  12. Protactinium (Pa) • Discovered in 1913 by Fajans and Göhring • is named from the Greek proto + actinium (parent of actinium) • silvery-white metal, extrememly rare, very radioactive and highly poisonous

  13. Einsteinium (Es) • a metallic synthetic element • Radioactive • Named after Albert Einstein

  14. Resources for Information • http://www.chemtopics.com/elements/act/act.htm • http://www.ptable.com/ • http://science.jrank.org/pages/58/Actinides-Uses-actinides.html • http://chem4kids.com/files/elem_actinide.html • http://science.howstuffworks.com/actinide-elements-info.htm

  15. Resources for Photos • http://www.chemtopics.com/elements/act/act.htm

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