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Neptunium is an artificial chemical element. Neptunium can be found in the nature only in ultratraces resulting from nuclear weapons experiments, radioactive wastes from nuclear reactors or from other experiments. Neptunium is found also in extremely low concentrations in uranium ores.
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∙ 13y ago
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∙ 14y agoSometimes when a U-235 nucleus is whacked with a neutron it captures the neutron and becomes U-236 instead of splitting. Some of that U-236 can also absorb a neutron to form U-237. U-237 decays via beta emission, which is essential just converting a neutron into a proton and an electron (beta particle). This creates Np-237, which has a half-life of around 2 million years. U-235 + n ---> U-236 + n ---> U-237 ---> N-237 + b-
Wiki User
∙ 9y agoThe most common isotope of neptunium - Np-237 - has in the nucleus 93 protons and 144 neutrons.
For other isotopes the number of neutrons is different.
Number of neutrons = Mass number of an isotope - 93
Wiki User
∙ 12y agoThe nuclear reactions are:
23892U + n-------23992U-------23993Np + e--------23994Pu + e
Wiki User
∙ 11y agoAmong actinides (the second row on the bottom of the periodic table)
Its atomic number is 93
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∙ 9y agoNeptunium is an artificial element; in nature exist only in infinitesimal amounts in uranium ores. Also neptunium can be detected as a residue of nuclear tests.
Wiki User
∙ 13y agoNaturally, in extremely low concentrations, in uranium ores.
Wiki User
∙ 12y agoNeptunium exist in traces in all uranium ores; also exist in the terrestrial zones of nuclear weapons tests.
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Where does neptunium fit on the periodic table?
Neptunium is a member of the actinides group.
What is the family name for neptunium?
Neptunium is a member of the actinoids family.
Which can be found on a periodic table elements compounds or mixtures?
Elements are found on periodic table. Compounds are not present on periodic table. The table does not contains mixture.Elements can be found on a periodic table. Compounds can be made by bonding two or more elements. But they are not depicted on the periodic table.
What type of matter is found in the periodic table?
Elements are found on the periodic table.
Where is electronegativity on the periodic table?
Electronegativity is not found on the Periodic Table of the Elements.
Where does neptunium fit on the periodic table?
Neptunium is a member of the actinides group.
What is the ninety third element in the periodic table of the elements?
Neptunium is element 93.
What is the family name for neptunium?
Neptunium is a member of the actinoids family.
Which can be found on a periodic table elements compounds or mixtures?
Elements are found on periodic table. Compounds are not present on periodic table. The table does not contains mixture.Elements can be found on a periodic table. Compounds can be made by bonding two or more elements. But they are not depicted on the periodic table.
What type of matter is found in the periodic table?
Elements are found on the periodic table.
Where is electronegativity on the periodic table?
Electronegativity is not found on the Periodic Table of the Elements.
What are some examples of stable elements and where are they found in the periodic table?
noble elements are the stable elements. They are found in group 18 in the periodic table.
Why is water not found in periodic table?
The Periodic Table is a table of elements but water is a compound.
Where is an element found on the periodic table?
Everywhere. The periodic table only has elements
What are elements found?
Elements are found on the periodic table and have a chemical bond
How many liquid are found in a periodic table?
Only 2 elements of the 126 elements in the periodic table are liquid.
What are the elements of a cola that can be found in your periodic table?
All of them, the periodic table has all of the elements the human discovered or made..
