MCQ practice · SSC Chemistry Board questions · Chapter 4: Periodic Table
Which element has the higher electron affinity?
Think it through first, then pick an option.
- a Beryllium
- b Oxygen
- c Boron
- d Nitrogen
Answer and explanation
Correct answer: b Oxygen
O is furthest right and smallest of these.
Why the other options are wrong
- a Beryllium: Be is at the left of period 2, larger. The answer is Oxygen.
- c Boron: B is left of O. The answer is Oxygen: O is furthest right and smallest of these.
- d Nitrogen: N is just left of O, so lower. The answer is Oxygen.
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