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From wikipedia:"Selenium has six naturally occurring isotopes, five of which are stable: 74Se, 76Se, 77Se, 78Se, and 80Se. The last three also occur as fission products, along with 79Se which has a half-life of 295,000 years. The final naturally occurring isotope, 82Se, has a very long half-life (~1020 yr, decaying via double beta decay to 82Kr), which, for practical purposes, can be considered to be stable. Twenty-three other unstable isotopes have been characterized. "
74Se is stable with 40 neutrons
76Se is stable with 42 neutrons
77Se is stable with 43 neutrons
78Se is stable with 44 neutrons
80Se is stable with 46 neutrons
see the related link for a complete table on isotopes of selenium.
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How many nuetrons are in an atom of magnesium?
there are 12 nuetrons in an atom of magnesium
How many shells are there in selenium atom?
Selenium has four electron shells.
How many valence electrons in selenium?
6 valence electrons
How many protons electrons and nuetrons does magnesium have?
12 , 12 , 12
How many nuetrons and electrons does calcium have?
calcium has 20 neutrons and electrons
How many nuetrons does selenium have?
Neutrons = Mass number (Se-80) minus Atom (or proton 34Se) number (34) = 80-34 = 46 neutrons
How many nuetrons does titanium have?
since there are 22 protons there has to be 22 nuetrons since there are 22 protons there has to be 22 nuetrons
How many nuetrons does cobalt have?
im eleven and i know the answer the answer is 18 nuetrons
How many nuetrons are in phosphorus atom?
there are 16 nuetrons in phosphorus atom
How many nuetrons are in an atom of magnesium?
there are 12 nuetrons in an atom of magnesium
What element has 48 nuetrons?
There are stable isotopes of four elements with 48 neutrons: selenium-82, krypton-84, rubidium-85, and strontium-86.
How many nuetrons and protons in a nucleus?
protons and nuetrons are equal to no. of electrons present in atom
How many nuetrons does titanium element have?
26 nuetrons, 22 electrons, and 22 protons
How many nuetrons are in the element phosphorus?
it however has 15 protons , 15 electrons , and 16 nuetrons
How many nuetrons does aluminum have?
13
How many nuetrons does gallium have?
69.723
How many nuetrons does tin have?
50
