The electronic configuration of an element is 1s2 , 2s2 , 2p6 , 3s2 , 3p6 , 3d5 , 4s1 . This represents its :
Correct answer: B. ground state
- A. excited state
- B. ground state
- C. cationic form
- D. anionic from
Explanation
The given electronic configuration is ground state for chromium. Hence, (B) is the correct answer.
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Atomic structure covers the discovery of the proton, Planck's quantum theory, hydrogen emission spectra and the evidence for quantized energy levels. You will use quantum numbers to describe orbitals, distinguish s, p, d and f orbital shapes, and write electronic configurations, including the correct order of electron filling.
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