What is the chemical formula of neptunium?
Neptunium-237
| PubChem CID | 104783 |
|---|---|
| Structure | Find Similar Structures |
| Molecular Formula | Np |
| Synonyms | Neptunium-237 13994-20-2 Neptunium, isotope of mass 237 (~237~Np)Neptunium 237Np More… |
| Molecular Weight | 237.04817 |
What is neptunium dioxide used for?
Neptunium dioxide is also used experimentally for research into nuclear chemistry and physics, and it is speculated that it could be used to make efficient nuclear weapons. In nuclear reactors, neptunium dioxide can also be used as the target for plutonium bombardment.
What is npo chemistry?
Phosphoryl nitride (NPO) is a highly reactive intermediate, and its chemistry has only been explored under matrix isolation conditions so far. Here we report the synthesis of an anthracene (A) and phosphoryl azide based molecule (N3P(O)A) that acts as a molecular synthon of NPO.
Where was NP found?
Berkeley, California
McMillan and chemist Philip H. Abelson first found neptunium in 1940 after uranium had been bombarded by neutrons from the cyclotron at Berkeley, California….neptunium.
| atomic number | 93 |
|---|---|
| stablest isotope | 237 |
| melting point | 640 °C (1,184 °F) |
| specific gravity (alpha) | 20.45 |
| oxidation states | +3, +4, +5, +6, +7 |
What is the chemical name for the compound P3N5?
Phosphorus nitride
Phosphorus nitride (P3N5)
What is neptunium and plutonium?
Elements 93 and 94 were named neptunium (Np) and plutonium (Pu), because uranium was originally named after Uranus, and Neptune and Pluto are the next planets beyond Uranus, hence, the names neptunium and plutonium.
Is Np a metal?
Neptunium is a chemical element with the symbol Np and atomic number 93. A radioactive actinide metal, neptunium is the first transuranic element.
Is neptunium a metal nonmetal or metalloid?
Neptunium is a hard, silvery, ductile, radioactive actinide metal. In the periodic table, it is located to the right of the actinide uranium, to the left of the actinide plutonium and below the lanthanide promethium. Neptunium is a hard metal, having a bulk modulus of 118 GPa, comparable to that of manganese.
What is the symbol of neptunium?
NpNeptunium / Symbol
What do humans use neptunium for?
While neptunium itself has no commercial uses at present, it is used as a precursor for the formation of plutonium-238, and in radioisotope thermal generators to provide electricity for spacecraft. Neptunium has also been used in detectors of high-energy neutrons.
Who named plutonium?
| Discovery date | 1940 |
|---|---|
| Discovered by | Glenn Seaborg and colleagues |
| Origin of the name | Plutonium, is named after the then planet Pluto, following from the two previous elements uranium and neptunium. |
| Allotropes |
What is the name for SF2?
SF2 : Summary
| Code | SF2 |
|---|---|
| One-letter code | X |
| Molecule name | 5-CHLORO-1-(3-METHOXYBENZYL)-3-(PHENYLTHIO)-1H-INDOLE-2-CARBOXYLIC ACID |
| Synonyms | SF147 |
What is the formula for Triphosphorus?
P3
Triphosphorus
| PubChem CID | 143245 |
|---|---|
| Structure | Find Similar Structures |
| Molecular Formula | P3 |
| Synonyms | Triphosphorus 55030-78-9 DTXSID20203571 |
| Molecular Weight | 92.92128599 |
What bond is NBr3?
| Name of Molecule | Nitrogen tribromide |
|---|---|
| Electron geometry of NBr3 | Tetrahedral |
| Hybridization | Sp³ |
| Bond angle | <109.5º |
| Total Valence electron for NBr3 | 26 |
What is plutonium bomb?
Definitions of plutonium bomb. a nuclear weapon in which enormous energy is released by nuclear fission (splitting the nuclei of a heavy element like uranium 235 or plutonium 239) synonyms: A-bomb, atom bomb, atomic bomb, fission bomb. types: clean bomb.
Why is it called plutonium?
Plutonium, is named after the then planet Pluto, following from the two previous elements uranium and neptunium.
Is Np an element?
Neptunium is a chemical element with symbol Np and atomic number 93. Classified as an actinide, Neptunium is a solid at room temperature.
Who discovered plutonium?
Joseph W. Kennedy
Glenn T. SeaborgEdwin McMillanArthur Wahl
Plutonium/Discoverers
What is the standard state of neptunium oxide?
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).?) Neptunium (IV) oxide, or neptunium dioxide, is a radioactive, olive green cubic crystalline solid with the formula NpO 2.
What is neptunium dioxide made from?
It is a common product of plutonium fission, and emits both α- and γ-particles. Industrially, neptunium dioxide is formed from the precipitation of neptunium (IV) oxalate from a neptunium feed solution with oxalic acid, followed by calcination to neptunium dioxide.
What are the physical and chemical properties of neptunium?
Physical and Chemical Properties – Physical and chemical properties of Neptunium are listed below – Its atomic number is 93. It means it has 93 protons in its nucleus. Its atomic mass number is 237. It is a member of the actinide series and a radioactive element.
What is a neptunium dioxide complex used for?
The neptunium dioxide complex is used as a means of stabilizing, and decreasing the “long term environmental burden” of neptunium as a nuclear fission byproduct. Actinide-containing nuclear waste will commonly be treated so that various AnO 2 (where An = U, Np, Pu, Am, etc.) complexes form.