Igcse Model Questions Vol1 2018 Chemistry Question 19
Practice objective / multiple choice question 19 from the 2018 Igcse Model Questions Vol1 Chemistry examination.
The diagram shows the Bohr model of an atom of phosphorus (atomic number 15). The K shell contains 2 electrons, the L shell contains 8 electrons and the M shell contains 5 electrons. (a) Write the electron configuration of phosphorus using the notation \(1s^2 2s^2 2p^6 3s^2 3p^3\). (b) State the number of valence electrons.
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This is Igcse Model Questions Vol1 2018 Chemistry Question 19. It is one of the objective questions from the 2018 Igcse Model Questions Vol1 Chemistry examination.
Difficulty level: Easy .
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