A-LevelChemistryChemical periodicityOct/Nov 2023Paper 2 Q113 Marks
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
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