Igcse Model Questions Vol1 2023 Chemistry Question 28
Practice objective / multiple choice question 28 from the 2023 Igcse Model Questions Vol1 Chemistry examination.
The diagram shows a Bohr model of an unknown element. The first shell contains 2 electrons, the second shell contains 8 electrons, and the third shell contains 5 electrons. a) Determine the atomic number of the element. b) Identify the element by its chemical symbol. c) Write the ground‑state electron configuration using the notation \(1s^2 2s^2 2p^6 3s^2 3p^x\), where you must find the value of \(x\).
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This is Igcse Model Questions Vol1 2023 Chemistry Question 28. It is one of the objective questions from the 2023 Igcse Model Questions Vol1 Chemistry examination.
Difficulty level: Easy .
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