不法商家在黄金中掺入铱,损害了消费者的利益。由图中信息可知,

不法商家在黄金中掺入铱,损害了消费者的利益。由图中信息可知,下列说法中错误的是                                            

A.铱的原子序数是77        B.铱的质子数是77 

C.铱属于非金属元素         D.铱的相对原子质量是192.2

 


答案

C

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