What is a the base of neptunium?

Answer 1

- intermediate in the preparation of plutonium 238 - in the instruments for the detection of high energy neutrons - possible use in the future as material for nuclear weapons - possible use in the future as nuclear fuel

Answer 2

It is the intermediate product between Uranium-238 and Plutonium-239.

Uranium-239 decays to Neptunium-239 with a halflife of 23.5 minutes.

Neptunium-239 decays to Plutonium-239 with a halflife of 2.33 days.

Answer 3

Some properties of neptunium:
- it is a radioactive metal, solid, reactive, having 3 or 4 allotropes, atomic number 93
- melting point: 639 0C
- calculated boiling point: 4 174 0C
- electron configuration: [Rn]5f46d17s2
- heat of fusion: 5,19 kJ/mol
- molar heat capacity: 29,46 J/mol.K
- Pauling electronegativity: 1,36
- electrical resistivity: 1,22 microohm.m
- it is paramagnetic
- the alpha form is orthorombic
- valences are: 3 to 7
- density of alpha form: 20,45 g/cm3
- empirical atomic radius: 155 pm
- thermal conductivity: 6,3 W/m.K
- first ionization energy: 604,5 kJ/mol
- valences: between 3 and 7
etc.

Answer 4

- intermediate in the preparation of plutonium 238 - in the instruments for the detection of high energy neutrons - possible use in the future as material for nuclear weapons - possible use in the future as nuclear fuel

Answer 5

Neptunium is a chemical element, artificial, actinoid, transuranic, solid, metal, radioactive, able to support a nuclear fission and a nuclear chain reaction, with the atomic number 93, etc.

Answer 6

Plutonium and neptunium are obtained in nuclear reactors:

U-238(n,gamma).................U-239(beta)...................Np-239(beta).................Pu-239

Answer 7

Please explain "base of a neptunium".
If you think to chemistry:
Known hydroxides are Np(OH)3, Np(OH)6, and in special conditions Np(OH)4, Np(OH)5.