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Periodic trends in chemical properties - class-XI

Question 1 of 20

The element having very high ionization enthalpy but zero electron gain enthalpy is: 

  1. H
  2. F
  3. He
  4. Be

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15₹7 Crores
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12₹25,00,000
11₹12,50,000
10₹6,40,000
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6₹40,000
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3₹5,000
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1₹1,000