Robuta

https://www.softschools.com/facts/periodic_table/mendelevium_facts/711/
Mendelevium (Md) has an atomic number of 101, with 101 protons in the nucleus of an atom. This actinoid has an unknown color, but is probably metallic or...
mendeleviumfacts
https://leblob.fr/fondamental/mendelevium-au-tableau
au tableaumendeleviumblobextra