A-LevelChemistryAtomic structureMay/June 2023Paper 1 Q11 Mark
When chlorine gas is analysed in a mass spectrometer 35Cl+ ions are detected. Which row is correct?
A17 1s²2s²2p⁶3s²3p⁴
B17 1s²2s²2p⁶3s²3p⁶
C18 1s²2s²2p⁶3s²3p⁴
D18 1s²2s²2p⁶3s²3p⁶
✓ Correct Answer
The correct answer is C. This question tests the candidate's understanding of atomic structure within the Chemistrysyllabus. The examiner's mark scheme requires...
📋 Examiner Report & Trap Analysis
Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
🔒
Unlock the Examiner's Answer
Sign up for free to reveal the correct answer, the official mark scheme breakdown, and the examiner trap analysis for this question.
Sign Up Free to Unlock →Join thousands of Cambridge students already using Oracle Prep