lawrencium 

  1. 名詞
不可數名詞: 鐒

    
                        
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例句

                

                    
    
                                                    
  1. 
                                They showed its alpha-decay product was element 103, Lawrencium .                            
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  2. 
                                A lawrencium atom has 103 electrons, of which three can act as valence electrons.                            
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  3. 
                                The fourth element, either actinium or lawrencium , has only radioactive isotopes.                            
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  4. 
                                Twelve isotopes of lawrencium are known, with mass numbers 252–262 and 266; all are radioactive.                            
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  5. 
                                Very little is known about lawrencium , and none of its physical properties have been confirmed.                            
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