In an element,7x15 what does 7 represent ?
A.Mass number
B.Atomic number
C.Number of neutrons
D.Number of neutron and proton.
A.Mass number
B.Atomic number
C.Number of neutrons
D.Number of neutron and proton.
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In an element,7x15 what does 7 represent ?
A.Mass number
B.Atomic number
C.Number of neutrons
D.Number of neutron and proton.
answer:
C.Number of neutrons is my answer.
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