Multiple Choice
Which of the following trends is observed when moving down a group (column) in the periodic table?
104
views
10. Periodic Properties of the Elements
Periodic Trend: Cumulative
Multiple Choice
Which of the following statements is false?
A
The first ionization energy of chlorine is larger than magnesium.
B
Anions are larger than their parent atoms.
C
The removal of the first electron from boron is highly exothermic.
D
The oxygen atom is smaller than the barium atom.
E
All of the statements are true.
Verified step by step guidance1
Identify the concept of ionization energy: Ionization energy is the energy required to remove an electron from an atom in the gaseous state. Generally, ionization energy increases across a period and decreases down a group in the periodic table.
Compare the first ionization energies of chlorine and magnesium: Chlorine is to the right of magnesium in the same period, so it typically has a higher ionization energy due to increased nuclear charge and smaller atomic radius.
Understand the size of anions compared to their parent atoms: Anions are larger than their parent atoms because the addition of electrons increases electron-electron repulsion, causing the electron cloud to expand.
Evaluate the statement about the removal of the first electron from boron: The removal of an electron is an endothermic process, meaning it requires energy input, not release. Therefore, the statement that it is highly exothermic is false.
Compare the sizes of oxygen and barium atoms: Oxygen is higher up in the periodic table and has fewer electron shells than barium, making it smaller in size. This statement is true.
Related Videos
Related Practice
