valency of elements from 20 to 30
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Valency of elements 20 to 30
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- Elements - Valency
- Calcium - 2
- Scandium - 3
- Titanium - 4
- Vanadium - 5 , 4
- Chromium - 2
- Manganese - 7 , 4 , 2
- Iron - 2 , 3
- Cobalt - 3 , 2
- Nickel - 2
- Copper - 2 , 1
- Zinc - 2
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