Stable
Erbium-162
            162
          
          
            68
          
          
              Er
            
            
              Erbium
            
          Isotopic Enrichment (atom %): 
            27-34
          Natural Abundance (atom %): 
            0.14
          Product Form
              
            Quantity
            
          
                Milligrams
              
            Erbium-164
            164
          
          
            68
          
          
              Er
            
            
              Erbium
            
          Isotopic Enrichment (atom %): 
            62-73
          Natural Abundance (atom %): 
            1.60
          Product Form
              
            Quantity
            
          
                Milligrams
              
            Erbium-166
            166
          
          
            68
          
          
              Er
            
            
              Erbium
            
          Isotopic Enrichment (atom %): 
            96
          Natural Abundance (atom %): 
            33.50
          Product Form
              
            Quantity
            
          
                Milligrams
              
            Erbium-167
            167
          
          
            68
          
          
              Er
            
            
              Erbium
            
          Isotopic Enrichment (atom %): 
            91
          Natural Abundance (atom %): 
            22.87
          Product Form
              
            Quantity
            
          
                Milligrams
              
            Erbium-168
            168
          
          
            68
          
          
              Er
            
            
              Erbium
            
          Isotopic Enrichment (atom %): 
            95-97
          Natural Abundance (atom %): 
            26.98
          Product Form
              
            Quantity
            
          
                Milligrams
              
            Erbium-170
            170
          
          
            68
          
          
              Er
            
            
              Erbium
            
          Isotopic Enrichment (atom %): 
            95-96
          Natural Abundance (atom %): 
            14.91
          Product Form
              
            Quantity
            
          
                Milligrams
              
            
        
    
