Neco 2025 Chemistry Question 7
Practice objective / multiple choice question 7 from the 2025 Neco Chemistry examination.
An unknown non‑metal element X satisfies the following conditions: (i) X is in the same period as the element with atomic number 7; (ii) The Pauling electronegativity of X is 0.54 less than that of fluorine (which has \( \chi = 3.98 \)); (iii) The bond length of the diatomic molecule X\_2 is 21 pm shorter than that of F\_2, whose bond length is 142 pm. Identify element X.
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About This Question
This is Neco 2025 Chemistry Question 7. It is one of the objective questions from the 2025 Neco Chemistry examination.
Difficulty level: Hard .
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