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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 ...

Europium (Eu) 1. Basic Information Atomic Number 63 Symbol Eu Atomic Mass 151,964 u Category Rare ea...

Samarium (Sm) 1. Basic Information Atomic Number 62 Symbol Sm Atomic Weight 150.35 g/mol Category Ra...

Prometium (Pm) 1. Basic Information Atomic Number 61 Symbol Pm Atomic Weight 145 (most stable isotop...

Neodymium (Nd) 1. Basic Information Atomic Number 60 Symbol Nd Atomic Weight 144.242 g/mol Category ...