What is magnesium atomic number?

Fact box
Group 2 650°C, 1202°F, 923 K
Atomic number 12 24.305
State at 20°C Solid 24Mg
Electron configuration [Ne] 3s2 7439-95-4
ChemSpider ID 4575328 ChemSpider is a free chemical structure database

What is the atomic number for magnesium 24?

Magnesium is a chemical element with symbol Mg and atomic number 12. Classified as an alkaline earth metal, Magnesium is a solid at room temperature.
…
9.4Isotope Mass and Abundance.
Isotope Atomic Mass (uncertainty) [u] Abundance (uncertainty)
24Mg 23.985 041 70(9) [0.7888, 0.7905]