Davis,+Jamil

__**// Neptunium //**__



** Described the properties of the element :** · ** The atomic number of neptunium is 93 ** · ** The atomic mass of neptunium is 237.0482 ** · ** Neptunium is a solid element element ** · ** Neptunium is a metal **

· **Radioactive chemical element of the echinoid series of the periodic table, first transuranium element to be artificially produced, atomic number 93. Though traces of neptunium have subsequently been produced by neutron- induced transmutation reactions in ores, Edwin M. McMillan and Philip H. Abelson first found neptunium in 1940 after uranium had been bombarded by neutrons from the cyclotron at Berkeley, Calif. Neptunium has been produced in weighable amounts in breeder reactions as a by- product of production from uranium- 238 (about part neptunium is produced for every 1,000 parts plutonium). All neptunium isotopes are radioactive, the stab lest is… (100 of 605 words) **
 * Explain the dicovery or history the element: **

** Explain and describe in detail the common or popular uses of the element: ** · ** The common use of neptunium is neutron electron equipment ** · **There are no major commercial uses of the neptunium, although neptunium- 237 is used as a component in detection instruments. Neptunium -237 can also be used to make plutonium- 238 (by absorption of a neutron). Neptunium is considered useabl nuclear weapons, although no century is known to have used it to make a nuclear explosive device.**

[|periodic table of elements] [|neptunium metals] [|the element neptunium]