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QUESTION:
The electronic configuration of two elements x and y are given below:
x=2,8,2
y=2,8,7
The formula of a compound that can be formed between these two elements is:
ANSWER:
x=2,8,2
valence e- =2
y=2,8,7
valence e- =1
So,The compound will be XY square.
Example-MgCL2
Answer:
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