D: Fe³⁺ and Mn²⁺
Oracle Prep sorts past-paper questions by topic, so you can drill Atomic Structure and see which topics are most likely to come up next.
Sign up free →Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content
An ion X⁺ has 23 nucleons and 10 electrons. What does the nucleus of X contain?
The diagram shows the structures of the atoms of elements L and M. The elements combine to form a compound. What is t…
Element Q is in Period 3 of the Periodic Table. It can form ions with the formula Q³⁻. Which element is most likely t…
A mixture of two substances is spotted onto a piece of chromatography paper. The paper is inserted into a beaker cont…
Which molecule contains a total of three covalent bonds?
The addition of dilute acid to a solution containing the anion Q and the subsequent use of limewater can be used to i…