Valency of elements from 31 to 50
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31GaGallium3, 2, 1.
32GeGermanium4, 3, 2, 1
33AsArsenic5, 3, 2, -3
34SeSelenium6, 4, 2, 1, -2
35BrBromine7, 5, 4, 3, 1,0, -1
36KrKrypton2, 0
37RbRubidium1, -1
38SrStrontium2
39YYttrium3, 2
40ZrZirconium4, 3, 2, 1, 0, -2
41NbNiobium5, 4, 3, 2, 1, 0, -1, -3
42MoMolybdenum6, 5, 4, 3, 2, 1, 0, -1, -2
43TcTechnetium7, 6, 5, 4, 3, 2, 1, 0, -1, -3
44RuRuthenium8, 7, 6, 5, 4, 3, 2, 1, 0, -2
45RhRhodium6, 5, 4, 3, 2, 1, 0, -1
46PdPalladium4, 2, 0
47AgSilver3, 2, 1, 0
48CdCadmium2, 1
49InIndium3, 2, 1
50SnTin4, 2, -4
32GeGermanium4, 3, 2, 1
33AsArsenic5, 3, 2, -3
34SeSelenium6, 4, 2, 1, -2
35BrBromine7, 5, 4, 3, 1,0, -1
36KrKrypton2, 0
37RbRubidium1, -1
38SrStrontium2
39YYttrium3, 2
40ZrZirconium4, 3, 2, 1, 0, -2
41NbNiobium5, 4, 3, 2, 1, 0, -1, -3
42MoMolybdenum6, 5, 4, 3, 2, 1, 0, -1, -2
43TcTechnetium7, 6, 5, 4, 3, 2, 1, 0, -1, -3
44RuRuthenium8, 7, 6, 5, 4, 3, 2, 1, 0, -2
45RhRhodium6, 5, 4, 3, 2, 1, 0, -1
46PdPalladium4, 2, 0
47AgSilver3, 2, 1, 0
48CdCadmium2, 1
49InIndium3, 2, 1
50SnTin4, 2, -4
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I don't know I know only 1 to30
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