Beryllium
= Beryllium
{title2=$\mathrm{Be}$}
{wiki}
Beryllium is the <chemical element> with atomic number four. Its isotope <beryllium-7> provides an important route to primordial <lithium-7>.
= Beryllium
{title2=$\mathrm{Be}$}
{wiki}
Beryllium is the <chemical element> with atomic number four. Its isotope <beryllium-7> provides an important route to primordial <lithium-7>.