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an element has atomic number 10 and an atomic mass of 20. how many neutrons are in the atom of this element? 10 20 30 0 200 nextreset
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an element has atomic number 10 and an atomic mass of 20. how many neutrons are in the atom of this element? 10 20 30 0 200 nextreset

User Virtual
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There are 10 neurons in the atom of this element. This can be worked out in the following way:

A = ( atomic mass )
Z = ( atomic number )
N = ( neutrons )
A = Z + N20 = 10 + NN = 20 - 10N = 10
User Roger Medeiros
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