Practise linking valence-electron configuration to compound formulae and reactivity, and explain why isotopes have the same chemical reactions using Edexcel IAL Chemistry evidence.
This question is about copper and its compounds.
A sample of copper contains the isotopes 63Cu and 65Cu.
State why the two isotopes of copper have the same chemical reactions.
(isotopes have) the same electronic configuration
Allow same electron arrangement/electron(ic) structure
Allow the same number of electrons Ignore the same number of protons Ignore the same number of electrons in the outer shell/same number of valence electrons Ignore same period/same group Ignore any given electronic configurations/number of electrons even if wrong Ignore any reference to neutrons