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Question
Show the formation of Na2O by the transfer of electrons.
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Solution
`Na_2O`
Na=11=2,8,1 (Valency = 1)
O = 8 = 2,6 (Valency = 2)
(a) `Na → Na^(+)+ e^-`
`(Na → Na^(+)+e^-) xx 2`
`2Na → 2Na + 2e^-`
(b) `O + e^(-)→ O^-`
`(O + e^(-) → O^- ) xx 2`
`2O + 2e^(-) → O^-`
`i.e. 2Na + O → Na_2O`
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