A neutral atom that has only one electron in its 3d subshell has number of electrons in the outermost shell:
Correct answer: C. 2
- A. 9
- B. 7
- C. 2
- D. 5
Explanation
4s is outer most shell of a neutral atom with one electron in 3d and 4s has 2 electrons hence the correct option is 'C'.
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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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