valency chart for electropositive ions or radicals
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Explanation:
group 1 (valency +1)
H hydrogen
Li lithium
Na sodium
K potassium
Rb rubidium
Cs cesium
Fr frankium
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Answer:
Explanation:SO4 is an anion derived from an H2SO4 acid in which hydrogen valency is 1. As hydrogen is more electropositive than SO4, +1 will be its oxidation number. So we can calculate the Oxidation number of SO4 by using this information. ∴ valency of SO4 is 2.
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