Oxygen-18, fluorine-19 and neon-20 atoms have 10 neutrons each.
Fluorine (18.994-9=10 neutrons) and Neon (20.180-10=10 neutrons)
electrons
Neon, and certain isomers of other elements.
All chemical elements (excepting the isotope 1H) contain neutrons.
Lighter elements tend to have neutrons equal to protonms or only a slight excess. Heavier elements have an excess of neutrons over protons
Elements that have 12 neutrons include carbon-12, magnesium-24, and silicon-28. For example, carbon-12 has 6 protons and 6 neutrons, while magnesium-24 has 12 protons and 12 neutrons. To find specific elements with exactly 12 neutrons, you can look at their isotopes, which have varying numbers of neutrons.
An atom of Ne has 10 neutrons for more information visit this site:http://www.chemicalelements.com/elements/ne.html
Atoms of all elements can have neutrons in them. Only the element hydrogen has an isotope whose atoms do not contain neutrons, but all other isotopes of hydrogen have neutrons in them. In the heavier elements the number of neutrons always exceeds the number of protons in the atom.
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neutrons of all atoms are alike
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There are 10 neutron in a neon atom. We just leaned this in my class. The atomic number is 10 so there are 10 protons and 10 electrons. You subtract the atomic number from the atomic mass: 20-10=10. There are 10 neutrons.