Darmstadtium and Promethium Periodic Table
Symbol
Ds
  
Pm
  
Group Number
Not Available
  
Period Number
7
  
6
  
Block
d block
  
f block
  
Element Family
Probably Transition
  
Lanthanide
  
Space Group Name
Not Available
  
Not Available
  
Space Group Number
Not Available
  
Not Available