a) La, Ce, Pr, Nd
b) He, Ne, Ar, Kr
c) Nh, Fl, Mc, Lv
d) Al, Ta, Nb, Ti
Which of the following can be used for producing oxide films on their surfaces during anodic oxidation?
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answerhappygod
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Which of the following can be used for producing oxide films on their surfaces during anodic oxidation?
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