Chemistry > QUESTION PAPER & MARK SCHEME > Pearson Edexcel Level 3 GCE Chemistry Advanced Subsidiary PAPER 1: Core Inorganic and Physical Chemi (All)
Pearson Edexcel Level 3 GCE Chemistry Advanced Subsidiary PAPER 1: Core Inorganic and Physical Chemistry. question booklet mark scheme results November 2021
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find answers below Answer ALL questions. Some questions must be answered with a cross in a box . If you change your mind about an answer, put a line through the box and then mark your new answer wi... th a cross . 1 Bromine exists as two stable isotopes. The two isotopes are represented by the symbols 35 79Br and 35 81Br. (a) Give one similarity and one difference between these two isotopes by referring to the number of particles in the nuclei of the two isotopes. (2) .................................................................................................................................................................................................................................................................................... .................................................................................................................................................................................................................................................................................... .......................................................................................................................................................................................... An answer that makes reference to the following points: • (strong) electrostatic attraction • between oppositely charged ions [Show More]
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