السلام عليكم:
1 ) الهيدروجين فى H2o = 1
H2=0
kH=-1

2 -الاكسجين فى of2=-2
ko2 = -1/2
H2o2 = -1
li2o=-2
o2=0

[color=#ff0040]3 - الكلور فى :[/color]
[color=#ff0040]Naclo3=5[/color]
[color=#ff0040]nacl=-1[/color]
[color=#ff0040]Hclo4=7[/color]
[color=#ff0040]Naclo2=3[/color]
[color=#ff0040]kclo=1[/color]

[color=#ff0000]4 - الكبريت فى:[/color]
[color=#ff0000]k2s2o2=1[/color]
[color=#ff0000]h2s=-2[/color]
[color=#ff0000]Nahso4=6[/color]
[color=#ff0000]so4=8[/color]
[color=#ff0000]so3=6[/color]