Elements / 12
12Mg24.305
Magnesium
Alkaline earth metal · s-block · ring M · spoke 2
Magnesium is element 12, an alkaline earth metal. It sits on ring M (period 3) on spoke 2, the alkaline earth metals. Follow that spoke toward the center and out again to find its chemical relatives.
Properties
| Density | 1.74 g/cm³ | Terrain → |
|---|---|---|
| Melting point | 923 K · 650 °C | Terrain → |
| Boiling point | 1,363 K · 1,090 °C | Terrain → |
| Electronegativity | 1.31 | Terrain → |
| First ionization energy | 738 kJ/mol | Terrain → |
| Atomic weight | 24.305 u | Terrain → |
| Crustal abundance | 23,300 ppm7th most abundant in Earth's crust of 92 | Terrain → |
| Discovered | 1755 | Terrain → |
Values from open reference data; see sources. "Terrain" opens that property as a 3D landscape across the whole spiral.
Two things you might not know
- In 1618 a farmer at Epsom tried giving his cows water from a local well; salts from that water are named for the town.
- Burns with a brilliant white light used in fireworks, flares and early camera flash; plants need it to make chlorophyll.
Checked against en.wikipedia.org.
Spoke 2: Alkaline earth metals
Ring M (period 3)
Play with Magnesium
Watch it fly into its seat, or raise the whole spiral into a landscape and see where it peaks.