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ICSE Class 10 Chemistry 2014 Paper

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MM is a metal above hydrogen in the activity series and its oxide has the formula M2O\mathrm{M}_2\mathrm{O} . This oxide when dissolved in water forms the corresponding hydroxide which is a good conductor of electricity. In the above context answer the following:
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Question : 85 of 88
Marks: +1, -0
How many electrons are there in the outermost shell of MM ?
Solution:  
1
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