Magnesium's atomic number is 12, and its atomic mass is approximately 24. How many neutrons does magnesium have?(2 points) Responses 24 24 20 20 12 12 58

1 answer

To find the number of neutrons in an atom, you can use the formula:

Number of Neutrons = Atomic Mass - Atomic Number

For magnesium:

  • Atomic mass ≈ 24
  • Atomic number = 12

So, the calculation is:

Number of Neutrons = 24 - 12 = 12

Therefore, magnesium has 12 neutrons.