One Line Answer
The atom of aluminium is represented by 27Al13. Write down the number of neutrons in the different orbits or shells in one atom of aluminium.
27Al13 Ato,ic mass = (P + n) = A
Atomic number 13 = P = e = Z
Number of neutrons = A − Z = 27 − 13 = 14
Concept: Electrons Distributed in Different Orbits (Shells)
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