Isotopes of Neptunium (Np)

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Isotopes of Neptunium (Np)

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Find list of stable and radioactive isotopes of different elements, half life period of its unstable or radioactive isotope, molecular weight, particle emitted during decay and more

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Neptunium (Np) has 20 istopes, they are
²²⁵Np, ²²⁶Np, ²²⁷Np, ²²⁸Np, ²²⁹Np, ²³⁰Np, ²³¹Np, ²³²Np, ²³³Np, ²³⁴Np, ²³⁵Np, ²³⁶Np, ²³⁷Np, ²³⁸Np, ²³⁹Np, ²⁴⁰Np, ²⁴¹Np, ²⁴²Np, ²⁴³Np, ²⁴⁴Np

Common Unstable Isotopes of Neptunium (Np) are

Element	Mass	Symbol	Decay Type	Half Life
Neptunium	235	²³⁵Np	Electron capture (e), Alpha decay (a)	396.1 days
Neptunium	236	²³⁶Np	Electron capture (e), Alpha decay (a), Beta decay	154,000 years
Neptunium	237	²³⁷Np	Alpha decay (a)	2.1444 million years
Neptunium	238	²³⁸Np		2.117 days
Neptunium	239	²³⁹Np	Beta decay	2.356 days
Neptunium	240	²⁴⁰Np		65 minutes
Neptunium	240m	^240mNp		7.4 minutes

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