Question

what is the atomic mass and atomic no. ?? what is the atomic mass of aluminum​

Answer 1

Answer:

Atomic mass:- the average mass of the atom of an element measured in atomic mass(unit dalton D).

Atomic no :- the number of proton.

ATOMIC MASS OF ALUMINIUM;- 26.981539 u...

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Answer 2

Answer:

Together, the number of protons and the number of neutrons determine an element's mass number: mass number = protons + neutrons. If you want to calculate how many neutrons an atom has, you can simply subtract the number of protons, or atomic number, from the mass number.