K forms the compound K 2 O , which is an ionic compound that is brittle. Identify another element, M , that is likely to form a brittle, ionic compound with the formula M 2 O . Justify your answer in terms of periodic trends.
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The other element is sodium Na
Explanation:
- The oxidation state of potassium is +1
- The group that shows oxidation state of +1 is the group No. 1
- Group 1 has metal elements
- Na and K have same number of valence electrons and thus shows same oxidation state.
- Na and K both belong to group 1 and are brittle in nature
- One can easily cut them into pieces
- The compound that has a chemical formula M2O is also brittle so the other element is Na
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