Definition of ATOMIC NUMBER 91, The Crossword Guru Dictionary and Synonyms

Synonyms and definition of the word or term

Atomic Number 91


  • S: (n) pa , protactinium , protoactinium a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead.


External Links

<======iframe id='iframe' src='======================//' scrolling='no' frameborder='0'style='width:100%; height:100%; position: absolute; top:0; left:0;' >