The elements silicon, phosphorus and sulfur are in Period 3 of the Periodic Table. (b) Table 1.1 shows some properties of the elements Si to S. The first ionisation energy of P is not shown. [Table 1.1]
property | Si | P | S
---|---|---|---
total number of electrons in s subshells | | |
total number of electrons in p subshells | | |
first ionisation energy/kJ mol-1 | 786 | | 1000
formula of most common chloride | SiCl4 | PCl5 | SCl2

Q: What topic does this question test?

This question tests Chemical periodicity in A-Level Chemistry (syllabus code 9701). It is worth 13 marks.

Q: Which exam paper is this question from?

This question appeared in the Cambridge A-Level Chemistry Oct/Nov 2023 examination, Paper 2 Variant 2 (9701_w23_qp_22.pdf).

Question

The elements silicon, phosphorus and sulfur are in Period 3 of the Periodic Table. (b) Table 1.1 shows some properties of the elements Si to S. The first ionisation energy of P is not shown. [Table 1.1]
property | Si | P | S
---|---|---|---
total number of electrons in s subshells | | |
total number of electrons in p subshells | | |
first ionisation energy/kJ mol-1 | 786 | | 1000
formula of most common chloride | SiCl4 | PCl5 | SCl2

Oracle Prep · Accepted Answer

Sign up to Oracle Prep to view the full model answer with examiner insights.

📋 Examiner Report & Trap Analysis

🎯 Mark Scheme Breakdown

Unlock the Examiner's Analysis

About This A-Level Chemistry Question

Topic

Source

Practice on Oracle Prep

Related Chemistry Questions