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NEET2011ChemistryStructure of AtomActual

The number of electrons, neutrons and protons in a species are equal to 10,8 and 8 respectively. The proper symbol of the species is

Options

  1. A₈¹⁶ O
  2. B₈¹⁸ O
  3. C₁₀¹⁸ Ne
  4. D₈¹⁶ O ²⁻

Correct answer

D. ₈¹⁶ O ²⁻

Step-by-step solution

From the given data, it is clear that the atomic number, Z or number of protons of the species is 8 . Number of neutrons is also 8, hence atomic mass is 16. Since, the number of electrons are two more than the number of protons, hence it is a binegative species. Thus, the species is ₈¹⁶ O ²⁻ .

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