The table lists the first four ionisation energies for element X. Which ion of X forms when an electron is taken from a filled shell?
- A$X^+$
- B$X^{2+}$
- C$X^{3+}$
- D$X^{4+}$
Chemistry 9701 · AS & A Level · Atomic structure
The table lists the first four ionisation energies for element X. Which ion of X forms when an electron is taken from a filled shell?