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NTA Abhyas NEET2020ChemistryClassification of Elements and Periodicity in PropertiesPractice

Which of the following processes requires maximum energy

Options

  1. AM g g ⟶ M g + g + e –
  2. BM g + g ⟶ M g + 2 g + e –
  3. CN a g ⟶ N a + g + e –
  4. DN a + g ⟶ N a 2 + g + e –

Correct answer

D. N a + g ⟶ N a 2 + g + e –

Step-by-step solution

N a + has stable electronic configuration (1s 2 ,2s 2 2p 6 ). If remove extra electrone that is present in inner shell, so need more energy to remove it.(insufficient amount of energy)

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