Grade 11 Chemistry: Periodic Trends Worksheet
Explore the fundamental periodic trends of elements including atomic radius, ionization energy, electronegativity, and electron affinity with this comprehensive worksheet for Grade 11 Chemistry.
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Grade 11 Chemistry: Periodic Trends
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Read each question carefully and answer to the best of your ability. Refer to your knowledge of the periodic table and periodic trends.
1. Which of the following elements has the largest atomic radius?
Lithium (Li)
Sodium (Na)
Potassium (K)
Rubidium (Rb)
2. Which trend accurately describes ionization energy across a period?
Increases from left to right
Decreases from left to right
Remains constant
First increases, then decreases
3. The energy required to remove an electron from a gaseous atom is called the .
4. Electronegativity generally down a group on the periodic table.
5. Elements in the same have similar chemical properties due to having the same number of valence electrons.
6. Nonmetals typically have higher ionization energies than metals.
True
False
7. Electron affinity generally increases as you move down a group.
True
False
8. Explain why atomic radius decreases across a period in the periodic table.
9. Compare and contrast ionization energy and electronegativity.
Refer to the periodic table illustration below for questions 10 and 11.
10. Identify two elements that would have similar chemical properties to Magnesium (Mg). Explain your reasoning.
11. Based on periodic trends, predict whether Fluorine (F) or Iodine (I) has a higher electronegativity. Justify your answer.