Problem: Which of the following statements is/are true? i. the electron configuration of silver (Ag) is [Kr] 5s24d9 ii the electrom configuration of selenium (Se) is [Ar] 4s24d104p3 iii the electron configuration of chromium (Cr) is [Ar] 4s13d5 A. i only B. ii only C. iii only D. i and ii E. ii and iii

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Which of the following statements is/are true?

i. the electron configuration of silver (Ag) is [Kr] 5s24d9
ii the electrom configuration of selenium (Se) is [Ar] 4s24d104p3
iii the electron configuration of chromium (Cr) is [Ar] 4s13d5

A. i only
B. ii only
C. iii only
D. i and ii
E. ii and iii

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