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neptunium
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neptunium
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理学
放射性元素
释
neptunium
镎
人工放射性元素,元素符号Np,原子序数93,半衰期最长的同位素的质量数237。属周期系ⅢB族,锕系元素。仿照以天王星命名铀的方法,以天王星外面的海王星(Neptune)命名镎。
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neptunium
镎
93Np
Astronomy
neptunium
缩写:Np。镎
Chemistry
>放射化学与辐射化学>放射性元素化学>释义
neptunium
镎
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cosmic gas dynamics
cosmic gasdynamics
cosmic gas dynamics, cosmic aerodynamics
cosmic gusher
cosmic hole
cosmic horizon
Cosmic Hot Interstellar Plasma Spectrometer Satellite
cosmic infrared background
cosmic jet
Cosmic Lens All-Sky Survey
cosmic light
cosmic light horizon
cosmic Mach number
cosmic magnetic field
cosmic magnetohydrodynamics
cosmic mean
cosmic mean density
cosmic microwave background
cosmic microwave background anisotropy
cosmic microwave background, CMB
cosmic microwave background polarization
cosmic [microwave] background radiation
cosmic microwave background radiation
cosmic [microwave] background radiation, CMBR
cosmic microwave background radiation, CMBR
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