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

Answer 1

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

\[ \text{Number of Neutrons} = \text{Atomic Mass} - \text{Atomic Number} \]

For magnesium:

• Atomic Number = 12
• Atomic Mass = 24 (approximately)

Now, substituting the values into the formula:

\[ \text{Number of Neutrons} = 24 - 12 = 12 \]

Thus, magnesium has 12 neutrons. The correct response is 12.