Electronic configuration of Gold [Au79] is
Correct answer: A. [Xe]4f14, 5d10, 6s1
- A. [Xe]4f14, 5d10, 6s1
- B. [Xe]4 f10, 5d10, 6s2
- C. [Xe]4f14, 5d9, 6s2
- D. [Xe]4f14, 5d10, 6s2
Explanation
Atomic number of Au is 79, its electronic configuration is1s22s22p63s23p63d104s24p64d105s25p64f145d106s1(The electronic configuration of Xe is 1s22s22p63s23p63d104s24p64d105s25p6)Hence electronic configuration of Au79 is [Xe] 4f14, 5d10, 6s1The correct electron configuration of gold (Au79) is:[Xe]4f14, 5d10, 6s1 This configuration represents the filling of electron orbitals in the order of increasing energy levels. The noble gas core notation [Xe] indicates the electron configuration of the noble gas xenon (54 electrons) up to its completed 5p orbital.
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