ICSE Class 10 Chemistry 2014 Solved Paper
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is a metal above hydrogen in the activity series and its oxide has the formula . 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 ?
Solution:
1
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