Interpretation: The elements need to be arranged on the basis of increasing ionization energy.
Concept interpretation:Ionization energy is the amount of energy required to remove an electron from an outer shell of atom.
Answer to Problem 8STP
Option A is correct, the correct order from smallest to largest is Cs
Explanation of Solution
Ionization energy of an atom increases left to right in a period because the electrons are held tighter and have higher effective nuclear charge. Due to increase in number of electron and shell remains the same. As we move across a period in periodic table, the ionization energy increases because the electrons are much tightly packed to the nucleus due to high effective nuclear charge.
Other options don’t follow the periodic trends for ionization energy.
Chapter 11 Solutions
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