Questions: In each pair, choose the atom which has the highest first ionization energy based on its position in the Periodic Table.
Mg or S
A
Mg
B
S
Transcript text: In each pair, choose the atom which has the highest first ionization energy based on its position in the Periodic Table.
Mg or S
A
Mg
B
S
Solution
Solution Steps
Step 1: Understanding Ionization Energy
Ionization energy is the energy required to remove an electron from an atom in its gaseous state. Generally, ionization energy increases across a period from left to right and decreases down a group in the Periodic Table.
Step 2: Analyzing the Position of Mg and S
Magnesium (Mg) is located in Group 2 and Period 3 of the Periodic Table.
Sulfur (S) is located in Group 16 and Period 3 of the Periodic Table.
Step 3: Comparing Ionization Energies
Since both Mg and S are in the same period, we compare their positions across the period. Ionization energy increases from left to right across a period due to increasing nuclear charge, which attracts electrons more strongly.
Final Answer
Sulfur (S) is to the right of Magnesium (Mg) in the same period, so it has a higher first ionization energy. Therefore, the answer is: