Question

is there any trick to learn oxidation no. of whole periodic table
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Answer 1

Answer:

Yes..we must remember elements as group wise ..then we can easily say oxidation number..

Explanation:

IA to IV A is positive and the oxidation number group number same

remaining group numbers as follows..

Zero /8th group ...0

7thA.....group......-1

6thA.... .............-2

5thA.......... ....-3