Berillium: Verskil tussen weergawes

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Verbeter
Lyn 46:
| <nowiki>[</nowiki>[[Helium|He]]<nowiki>]</nowiki>2[[Atoom orbitaal|Orbitale]]<sup>2</sup>
|-
| [[electronelektron|e]]<sup>-</sup> e per [[energie vlak]]
| 2, 2
|-