Which of the following has the highest ionization energy?
Practice Questions
1 question
Q1
Which of the following has the highest ionization energy?
Na
Mg
Al
Si
Silicon (Si) has the highest ionization energy among the given elements due to its higher nuclear charge and smaller atomic radius.
Questions & Step-by-step Solutions
1 item
Q
Q: Which of the following has the highest ionization energy?
Solution: Silicon (Si) has the highest ionization energy among the given elements due to its higher nuclear charge and smaller atomic radius.
Steps: 6
Step 1: Understand what ionization energy is. It is the energy required to remove an electron from an atom.
Step 2: Know that elements with a higher nuclear charge (more protons) usually have higher ionization energy because they hold their electrons more tightly.
Step 3: Recognize that smaller atoms (with a smaller atomic radius) also tend to have higher ionization energy because the electrons are closer to the nucleus.
Step 4: Compare the elements given in the question. Look for the one with more protons and a smaller size.
Step 5: Identify that Silicon (Si) has a higher nuclear charge and a smaller atomic radius compared to the other elements listed.
Step 6: Conclude that Silicon (Si) has the highest ionization energy among the options provided.
