Question #a276b
1 Answer
Aug 11, 2015
there are many .there is no valancy which is not important
Explanation:
i am giving a link to a site
oxidation states
iron exixts in +2,+3 AND 0(FREE FORM) AND SOMETIMES IN -1(RARE)
LEAD EXISTS IN + 4,+0 3,+ 2,+ 1
