The atomic numbers of three elements A, B, and Care 12, 18, and 20 res – InterviewSolution

InterviewSolution

1.	The atomic numbers of three elements A, B, and Care 12, 18, and 20 respectively. State, giving reason, which two elements show similar properties.
Answer» Solution :Electronic configurations are: `A (12) to 2, 8, 2, B (18) to 2, 8, 8, and C (20) to 2, 8, 8, 2`. Since ELEMENTS A and C have two valence electrons each, they SHOW similar properties.

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