Question 1
The successive ionisation energies for an element are shown in the table below. Determine which statement correctly explains the electron configuration of this element.
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Chemistry · Unit 1 · Properties and structure of atoms · Atomic structure
Explain how successive ionisation energy data is related to the electron configuration of an atom. Isotopes
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Question 2
An element has successive ionisation energies (in kJ mol\(^{-1}\)) of 738, 1,450, 7,730, 10,500, 13,600. Explain which group of the periodic table this element belongs to.
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Question 3
A sodium atom (\(Z = 11\)) has successive ionisation energies of \(496\) kJ mol\(^{-1}\), \(4{,}562\) kJ mol\(^{-1}\), \(6{,}912\) kJ mol\(^{-1}\), and \(9{,}543\) kJ mol\(^{-1}\) for the first four electrons removed. Explain why there is a large increase in ionisation energy between the first and second ionisation.
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