Protactinium (Pa) 1. Basic Information Property Value Atomic Number 91 Symbol Pa Atomic Mass 231.035...
Torium (Th) 1. Basic Information Property Value Atomic Number 90 Symbol Th Atomic Mass 232.04 g/mol ...
Actinium (Ac) 1. Basic Information Atomic Number 89 Symbol Ac Atomic Weight 227 g/mol Electron Confi...
Lutetium 1. Basic Information Property Value Atomic Number 71 Symbol Lu Atomic Weight 174.97 g/mol C...
Iterbium (Yb) 1. Basic Information Atomic Number 70 Symbol Yb Atomic Weight 173.04 g/mol Category Ra...
Tulium (Tm) 1. Basic Information Atomic Number 69 Symbol Tm Atomic Weight 168.93421 g/mol Category R...
Erbium (Er) 1. Basic Information Atomic Number 68 Symbol Er Atomic Weight 167.26 g/mol Category Rare...
Holmium (Ho) 1. Basic Information Atomic Number 67 Symbol Ho Atomic Weight 164.93 g/mol Category Rar...
Dysprosium (Dy) 1. Basic Information Atomic Number 66 Symbol Dy Atomic Weight 162.50 g/mol Category ...
Terbium (Tb) 1. Basic Information Atomic Number 65 Symbol Tb Atomic Weight 158.92534 g/mol Category ...


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