ICSE Class 10 Chemistry 2016 Solved Paper

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The following table shows the electronic configuration of the elements W,X,Y,Z;
 Element  W  X  Y  Z
 Electronic configuration  2, 8, 1  2, 8, 7  2, 5  1

Answer the following questions based on the table above :
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Question : 40
Total: 85
What type of Bond is formed between :
1. W and X
2. Y and Z
Solution:  
1. Metallic
2. Smallest
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