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question mark

The chemical species having same number of electrons in the outermost and penultimate shell is

(A) O2−

(B) Na+

(C) Cl−

(D) Al3+

Simran Bhatia , 12 Years ago
Grade 11
anser 1 Answers
Shane Macguire
  1. Configuration of Cl– ion is 1s22s22p63s23p6
Last Activity: 12 Years ago
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