Waec Model Questions Vol1 2023 Chemistry Question 15
Practice objective / multiple choice question 15 from the 2023 Waec Model Questions Vol1 Chemistry examination.
The diagram shows a neutral atom of element X. The nucleus contains 11 protons and 12 neutrons. Electrons are arranged in three shells: the first shell holds 2 electrons, the second shell holds 8 electrons, and the third shell holds 1 electron. Identify element X and write its ground‑state electron configuration.
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About This Question
This is Waec Model Questions Vol1 2023 Chemistry Question 15. It is one of the objective questions from the 2023 Waec Model Questions Vol1 Chemistry examination.
Difficulty level: Easy .
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