Elements / 4
4Be9.0122
Beryllium
Alkaline earth metal · s-block · ring L · spoke 2
Beryllium is element 4, an alkaline earth metal. It sits on ring L (period 2) on spoke 2, the alkaline earth metals. Follow that spoke toward the center and out again to find its chemical relatives.
Properties
| Density | 1.85 g/cm³ | Terrain → |
|---|---|---|
| Melting point | 1,560 K · 1,287 °C | Terrain → |
| Boiling point | 2,742 K · 2,469 °C | Terrain → |
| Electronegativity | 1.57 | Terrain → |
| First ionization energy | 900 kJ/mol | Terrain → |
| Atomic weight | 9.01218 u | Terrain → |
| Crustal abundance | 2.8 ppm | Terrain → |
| Discovered | 1798 | 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
- The James Webb Space Telescope's mirror is made of 18 hexagonal sections of it, each plated with a thin layer of gold.
- Named for the mineral behind emerald and aquamarine; it is transparent to X-rays, so it is used for X-ray windows.
Checked against en.wikipedia.org.
Spoke 2: Alkaline earth metals
Ring L (period 2)
Play with Beryllium
Watch it fly into its seat, or raise the whole spiral into a landscape and see where it peaks.