Question

How many neutrons does an atom of al-27 have? (hint: look at the periodic table for the atomic number aluminum (al) 13 14 27 40 aluminum has the atomic number of 13?

Answer 1

Yeah!! Atomic number of Aluminum is 13

No. of neutrons = Mass number - atomic number

27 - 13 =14

So, the number of neutrons in Al-17 is 14