Meaning of NEPTUNIUM in English


Name: neptunium

Symbol: Np

Atomic number: 93

Atomic weight: [ 237 ]

Group in periodic table:

Group name: Actinoid

Period in periodic table: 7 (actinoid)

Block in periodic table: f-block

CAS registry ID: 7439-99-8

Neptunium is a radioactive rare earth metal and has at least 3 allotropic forms. It is named for the planet Neptune. Np-237 is a by-product from nuclear reactors.

Chemistry of the elements English vocabulary.      Английский словарь химии элементов.