NP

(redirected from neptunium)
Also found in: Dictionary, Thesaurus, Medical, Acronyms, Encyclopedia, Wikipedia.

NP

The two-character ISO 3166 country code for NEPAL.

NP

1. ISO 3166-1 alpha-2 code for the Federal Democratic Republic of Nepal. This is the code used in international transactions to and from Nepalese bank accounts.

2. ISO 3166-2 geocode for Nepal. This is used as an international standard for shipping to Nepal. Each zone has its own code with the prefix "NP." For example, the code for Seti Zone is ISO 3166-2:NP-ME.
Mentioned in ?
References in periodicals archive ?
Even when the pollution is with a substance as serious as neptunium," said Christiansen.
This belonged to element number 61, one of the lanthanides (see 1940, Neptunium and Plutonium).
Other defense wastes that should be amenable to ATW include radioactive isotopes of iodine, plutonium, neptunium, and americium.
By selectively separating the actinides, uranium, plutonium, americium, curium and neptunium, you could decrease the time required for waste to return to the safe radiotoxicity level of naturally occurring uranium from 130,000 years to 270 years.
After nuclear fission reactions run their course, the remaining byproducts include heavier elements such as neptunium, plutonium, americium and curium.
Scientists first created the artificial element neptunium in 1940, around the time they made the first atoms of plutonium.
Nuclear waste, larded with plutonium, americium (more toxic than plutonium), curium, neptunium, radioactive cesium, strontium and iodine, accumulates at 435 reactors around the world.
The highly active liquid waste (HALW) containing the fission products and associated radioactive elements, such as americium, cesium, neptunium, and strontium, is cooled in storage tanks for one to two years.