Question

How many neutrons does Aluminum - 28 have?

Answer 1

Answer: 14 neutrons

Explanation:

Answer 2

the 28 represents the mass number of Aluminum. And Naturally, aluminum has 13 protons (Atomic number)

so to find the number of Neutrons in aluminum, use this relation

Neutron number = mass number - proton or atomic number

substitute the values into it

neutron number = 28-13

neutron number = 15

therefore ,there are 15 neutrons in the aluminum atom.