Intext solution VII — task. Science CBSE, Class 10.

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1. Write the electron-dot structures for sodium, oxygen and magnesium.

2. What are the ions present in these compounds (\(Na_2O\) and \(MgO\))?

In \(Na_2O\), ions present are

\(Na^-\) and \(O^{2+}\)
\(Na^+\) and \(O^{2-}\)
\(Na^{2+}\) and \(O^{2-}\)

In \(MgO\), ions present are

\(Mg^{+}\) and \(O^-\)
\(Mg^{2+}\) and \(O^2-\)
\(Mg^{+}\) and \(O^2-\)

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