Chemistry · Oct / Nov 2022 · Paper 11 · Question 6
5070Atomic structure and the Periodic Table
Which statement about iodine atoms and iodide ions is correct?
- AThey are both isotopes of iodine.
- BThey undergo the same chemical reactions.
- CThey have the same number of protons.
- DThey have the same physical properties.
As printed in the paper
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Correct answer: C. They have the same number of protons.
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