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Which of the following elements has the highest ionization energy?
Which of the following elements has the highest ionization energy?
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Practice Questions
1 question
Q1
Which of the following elements has the highest ionization energy?
Li
Na
K
Rb
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Lithium (Li) has the highest ionization energy among the given alkali metals due to its smaller atomic size.
Questions & Step-by-step Solutions
1 item
Q
Q: Which of the following elements has the highest ionization energy?
Solution:
Lithium (Li) has the highest ionization energy among the given alkali metals due to its smaller atomic size.
Steps: 7
Show Steps
Step 1: Understand what ionization energy is. It is the energy required to remove an electron from an atom.
Step 2: Know that elements in the same group (like alkali metals) have similar properties.
Step 3: Recognize that ionization energy generally increases as you move up a group in the periodic table.
Step 4: Compare the atomic sizes of the alkali metals. Smaller atoms have higher ionization energy because their electrons are held more tightly.
Step 5: Identify the alkali metals: Lithium (Li), Sodium (Na), Potassium (K), etc.
Step 6: Determine that Lithium (Li) is the smallest atom among these alkali metals.
Step 7: Conclude that Lithium (Li) has the highest ionization energy due to its smaller atomic size.
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