Question

how to find relative atomic mass of al​

Answer 1

Answer:

Al has atomic no. 13 and no. of neutrons = 14

So atomic mass of Al = 13+14 = 27

Answer 2

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Atomic mass

Atomic mass in an atom or group of an atom is the sum of the masses of protons, neutrons and electrons.

Atomic Mass = No. of protons + No. of neutrons