write valency electron and valency of following elements 1. oxygen to Silicon 3. sulphate 4. calcium 5.potassium 6. magnesium
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1. 6, (2,6)
2. 4, (2,8,4)
3. 6, (2,8,6)
4. 2, (2,8,8,2)
5. 1, (2,8,8,1)
6. 2, (2,8,2)
2. 4, (2,8,4)
3. 6, (2,8,6)
4. 2, (2,8,8,2)
5. 1, (2,8,8,1)
6. 2, (2,8,2)
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