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AQA AS CHEMISTRY 7404/2 Paper 2 Organic and Physical Chemistry Mark scheme June 2022

2023 AQA AS CHEMISTRY PAPER 2 INSERT, QUESTION PAPER AND MARK SCHEME 74042 BUNDLE

aqa as level chemistry paper 2

2023 AQA AS CHEMISTRY PAPER 1 INSERT, QUESTION PAPER AND MARK SCHEME 74041 BUNDLE

Give the full electron configuration of an Al atom and a Cr3+ ion : 1s2 2s2 2p6 3s2 3p1 1s 2s2 2p6 3s2 3p6 3d6 Deduce the formula of the ion that has a charge 2+ with the same electron : Sr2+ Deduce the formula of the compound that contains 2+ ions and 3- ions that both have the same electron configuration as argon : CaP Deduce which of Na+ and Mg2+ is the smaller ion 2 marks : Mg 2+ 2 Both have the same number of shielding however Mg2+ has more protons so higher nuclear charge and...

AQA AS CHEMISTRY Paper 1 Inorganic and Physical Chemistry Tuesday 16 May 2023 Morning Time allowed: 1 hour 30 minutes Materials For this paper you must have: • the Periodic Table/Data Sheet, provided as an insert (enclosed) • a ruler with millimetre measurements • a scientific calculator, which you are expected to use where appropriate. Instructions • Use black ink or black ball-point pen. • Fill in the boxes at the top of this page. • Answer all questions. ...