Both H ion and helium atom have the same number of:
Correct answer: D. None of above
- A. Proton
- B. Electron
- C. Neutrons
- D. None of above
Explanation
Therefore, the correct option is "None of the above" as H+ ion and helium atom have different numbers of protons, electrons, and neutrons.
This question appeared on the ETEA MDCAT 2009 paper, which you can sit online with every answer explained.
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About Electronic Configuration
Electronic configuration describes how electrons occupy shells, subshells and orbitals around an atom. Questions use the Aufbau principle, Pauli exclusion principle and Hund's rule to write configurations, identify valence electrons, form ions and explain periodic trends, including common exceptions such as chromium and copper.
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