Chemistry · May / June 2021 · Paper 41 · Question 2
0620
As printed in the paper
The question as text
Complete the table to: ● deduce the number of protons, electrons and neutrons in the magnesium atom and copper ion shown ● identify the atom or ion represented by the final row. number of protons number of electrons number of neutrons 25Mg 12 12 65Cu2+ 29 36 17 18 20 [Total: 5]
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Show the answer and mark scheme
Mg: 12 and 13 (1)
Cu2+: 29 and 27 (1)
37(above)
and17(below) (1)
Cl (1)
1– (1)
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