Algodoo

Its actualy so it would be more compact, but good job at putting everything toghether!

thanks

why did you put lawrencium and lutetium not with the other lanthanides/actinides?

Because lutetium and lawrencium are supposed to be d-block elements, not f-block. This follows the ordering of the Aufbau energy ordering rule. It also has to do with their electron configurations as they have a whole filled shell of f electrons and are naturally supposed to be at xd1 (Lu = [Xe] 4f14 5d1 6s2, Lr = [Rn] 5f14 7s2 7p1, which is strange considering how it should be [Rn] 5f14 6d1 7s2 instead.) So placing them in f-block shows no aboslute use. Even the IUPAC supported the idea of placing lutetium and lawrencium below yttrium instead of the much older not supported lanthanum and actinium with one reason being that although La and Ac lack f electrons (which goes against the Aufbau principle), they are still f-block elements anyway, if La and Ac were below Y instead, then the d-block would be split into two "highly uneven proportions". So Lu and Lr are thus easier to fill in that spot then La and Ac would.