1.

Two elements X and Y have atomic numbers 12 and 16 respectively. Two which period of the Modern Periodic Table do these two elements belong ? What type of bond will be formed between them and why ? Also give the chemical formula of the compound formed.

Answer»

Solution :• Electronic CONFIGURATION of X : 2, 8, 2.
• Electronic configuration of Y : 2, 8, 6.
• Both the elements belong to third GROUP.
• Ionic bond will be formed between the two.
Reason : X has a tendency to lose two electrons and Y has a tendency to GAIN two electrons to complete their octet.
• Chemical formula of the compound : XY


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