Actinide+Series

​ ​Tim M

Actinide Series is the series of elements that chemically made and are rare earth elements. Some are occur naturally in the earth's crust, some from nuclear fall out, others from other decayed Actinides. All Actinides are meltlic transition metals. Most Actinides do not have stable isotopes. Actinides are radioactive. There are two electrons in the outer shell of the elements in the Actinide series.

Actinium Symbol:Ac Atomic number: 89 Atomic mass: 232.0 29 common isotopes Ac 206 Ac 207 Ac 208



Thorium Symbol:Th Atomic number: 90 Atomic Mass: 232.0 33 common isotopes 228 Th 229 Th 230 Th



Protactinium Symbol:Pa Atomic number: 91 Atomic mass: 231.0 33 common isotopes 220 Pa 224 Pa 227 Pa

Uranium Symbol: U Atomic number: 92 Atomic mass:238.0 33 common isotopes 235 U 236 U 238 U Uranium was discovered in 1798 in Germany. The credit of the discovery is given to Martin Heinrich Klaproth. Martin gave the element the name Uranium after the planet Uranus. He also discovered many other elements. Uranium's freezing point/melting point is 1132.2ºC. Uranium is solid at room temperature. The density of uranium is 19.1 g/cm 3. Uranium boiling point is 4131ºC.Uranium is not very conductive. Uranium has a ductility of 8-22%. Uranium can be made into wires and strips. Uranium is not solubitly in water, but in some acids. Uranium's is reactivity with oxygen Uranium get's coated with a layer of oxide's. Uranium is highly flammable. Uranium is used in nucler fuel. Uranium is highly radioactive. Basic compounds: Oxides: UO, UO 2, UO 3 , U 2 O 5 , U 3 O 8 Hydride: UH 3 Chlorides: UCI, UCI 3, UCI 4 , UCI 5 , UCI 6 Others: UBr 3, UBr 4 , UI 3 , UI 4 , UO 2 F 2 , UOCI 2 , UO 2 CI 2 , UO 2 Br 2 Fun Fact Uranium salt is used in yellow vaseline.

Neptunium Symbol:Np Atomic number: 93 Atomic mass: (237) 24 common isotopes 235 Np 236 Np 237 Np

Plutonium Symbol:Pu Atomic number: 94 Atomic mass: (244) 27 common isotopes 238 Pu 239 Pu 240 Pu Americium Symbol: Am Atomic number: 95 Atomic mass: (243) 14 known isotopes 241 Am 243 Am 235 Am

Curium Symbol: Cm Atomic number: 96 Atomic mass: (247) 26 common isotopes 232 Cm 233 Cm 234 Cm Berkelium Symbol: Bk Atomic number:97 Atomic mass: (247) 19 common isotopes 247 Bk 248 Bk 249 Bk Californium Symbol: Cf Atomic number: 98 Atomic mass: (251) 20 common isotopes 249 Cf 250 Cf 251 Cf

Einsteinium Symbol: Es Atomic number: 99 Atomic mass: (252) 23 common isotopes 249 Es 248 Es 256 Es In December 1952 Einsteinium was first discovered by Albert Ghiorso and co-workers. At the University of California, Berekly campus. .Einsteinium's freezing/melting point is 860ºC. Einsteinium is soild at room temperature. Einsteinium density is 8.84 grams per cm -3. Einsteinium has no know uses and is not malleable, solubitly, boiling point, and has no ductility. Einsteinium has little conductivity. Einsteinium has unknown flammability, reactivity with oxygen, and general reactivity. Fun Fact Einsteinium was named in honor of Albert Einstein. Basic Compounds: EsBr 3 EsCI 2 EsCI 3 EsF 3 EsI 2 EsI 3 Es 2 O 3 Fermium Symbol: Fm Atomic number: 100 Atomic mass: (237) 17 common isotopes 253 Fm 252 Fm 255 Fm Mendelevium Symbol: Md Atomic number: 101 Atomic mass: (258) 23 common isotopes 257 Md 251 Md 255 Md Nobelium Symbol: No Atomic number:102 Atomic mass: (259) 20 common isotopes of nobelium 255 No 259 No 260 No Lawrencium Symbol: Lr Atomic number: 103 Atomic mass: (262) 12 common isotopes 262 Lr 257 Lr 261 Lr February 14, 1961 the element Lawrencium was made at the University of California, Berkeley campus at the Lawrece Berekly National Laboratory. Albert Ghiorso, Torbjørn Sikkeland, Almon Larsh, and Robert M. Latimer were the first to make the element. Lawrencium last for a short time and has unknown chemical and physical properties nor use. But is a hazard to people and Lawrencium is not very conductive. Basic compounds: Cloride: LrCI 3 Fun Fact Lawrencium originally symbol was Lw in 1963 but was changed to Lr in 1997.

Bibliography

Websites

//Actinoid// Wikimeadia Fondation, 17 Dec. 2009. Web. 3 Dec. 2009. . (Used links on page)

//Einsteinium// Wikimedia Foundation, Inc, n.d. Web. 6 Dec. 2009. [].

Gray, Theodore, Nick Mann, and Max Whitby. //Periodic Table// WOLFRAM RESEARCH, 1 Nov. 2009. Web. 3 Dec. 2009. [].

//Lawrenicum// Wikimedia Foundation, Inc, n.d. Web. 7 Dec. 2009. .

//Uranium// Wikimeadia Fondation, Nov. Web. 8 Dec. 2009. [].

Books

Holt, Rinehart, and Winston. //Introduction to Matter//. Austin, Texas: Owl Design, 2007. N. pag. Print.

Encyclopedia

Farndon, John. //Children's Encyclopedia//. 3rd ed. N.p.: n.p., 1998. 174. Print.