Question

12
Mg
Magnesium
24.305

Atomic number
atomic mass
# of protons
# of neutrons
# of electrons

Answer 1

For Magnesium (Mg), here's the breakdown of the requested information:

- **Atomic Number**: 12
- **Atomic Mass**: Approximately 24.305
- **Number of Protons**: 12 (The atomic number indicates the number of protons)
- **Number of Neutrons**: The number of neutrons can be calculated by subtracting the atomic number from the atomic mass (rounded to the nearest whole number).
- Neutrons = Atomic Mass - Atomic Number
- Neutrons = 24 - 12 = 12 (for the most common isotope)
- **Number of Electrons**: In a neutral atom, the number of electrons equals the number of protons, so there are also 12 electrons.

Here's a summary:

- **Atomic Number**: 12
- **Atomic Mass**: 24.305
- **Number of Protons**: 12
- **Number of Neutrons**: 12 (common isotope)
- **Number of Electrons**: 12