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Grade 12th pass9 grade science

21. Will 35Cl and 37Cl have different valencies? Justify your answer.

Profile image of Harshit Singh
5 Years agoGrade 12th pass
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1 Answer

Profile image of Pawan Prajapati
5 Years ago
No, 35Cl and 37Cl both atoms have same valency because these isotopes have same atomic number : 17. So, their electronic configuration is same : 2, 8, 7. Hence, both atoms have valency 1.