MCAS Chemistry Exam Practice

Category - Chemistry

Which of the following statements best explains why elements in the same family of the periodic table have similar bonding properties?
  1. The elements have similar atomic sizes.
  2. The elements have similar atomic masses.
  3. The elements have similar numbers of protons.
  4. The elements have similar valence electron configurations.
Explanation
Answer: D - The elements have similar valence electron configurations.
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