What is 238 on the periodic table?
The atomic number of uranium (see periodic table) is 92, and the mass number of the isotope is given as 238.
What is uranium on periodic table?
Uranium is a silvery-white metallic chemical element in the periodic table, with atomic number 92. It is assigned the chemical symbol U. A uranium atom has 92 protons and 92 electrons, of which 6 are valence electrons.
What does the 238 represent in plutonium?
Plutonium-238 is a very powerful alpha emitter; as alpha particles are easily blocked, this makes the plutonium-238 isotope suitable for usage in radioisotope thermoelectric generators (RTGs) and radioisotope heater units….Plutonium-238.
What’s uranium used for?
Uranium “enriched” into U-235 concentrations can be used as fuel for nuclear power plants and the nuclear reactors that run naval ships and submarines. It also can be used in nuclear weapons.
What is the symbol for plutonium?
What family does plutonium belong to?
On a periodic table you will find plutonium in period 7 belonging to the group called actinides. Elements (such as plutonium) in the actinide family are all radioactive.
What family does uranium belong to?
Uranium occurs near the beginning of the actinide family. The actinide family consists of elements with atomic numbers 90 through 103.
Why is plutonium named plutonium?
Origin of the name Plutonium, is named after the then planet Pluto, following from the two previous elements uranium and neptunium.
Where was plutonium found on the periodic table?
Back to Elements List. Plutonium is the second transuranium element of the actinide series. Element 93 was discovered in 1940/41 by Glenn T. Seaborg, Edwin M. McMillan, J. W. Kennedy, and A. C. Wahl by deuteron bombardment of uranium-238 in the 60-inch cyclotron at the University of California, Berkeley Lab.
What is the half life of neptunium 238?
Neptunium-238 has a half-life of little over two days and decay by beta emission forming the element 94 . Due to world war the declaration of the discovery of new element was delayed until after the war.
Which is the longest half life of plutonium?
Plutonium has twenty known radioisotopes. Plutonium isotopes range in mass number from 228 to 247. Traces of plutonium isotopes Pu-238, Pu-239, Pu-240 and Pu-244 can be found naturally. Pu-244 has the longest half-life .
Which is the second transuranium element on the periodic table?
The glowing sphere of plutonium-238 shown was similar to the one used to power the Cassini spacecraft. Plutonium is the second transuranium element of the actinide series.