periodic table

Compilation of Non-Metal Classification Related High School Entrance Exam Questions (Including Explanations)

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Compilation of Non-Metal Classification Related High School Entrance Exam Questions (Including Explanations)

1. Position in the Periodic Table and Bonding Rules (Core Exam Point: Classification Position → Property Correlation) Question 1 (2023 National A Paper) The following statements about non-metal elements and their compounds are correct ( ) A. Si is a metalloid, and its oxide SiO₂ is a basic oxide B. The highest valence oxides of … Read more

Compilation of High School Entrance Exam Questions on Metal Classification (with Explanations)

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Compilation of High School Entrance Exam Questions on Metal Classification (with Explanations)

1. Position and Classification in the Periodic Table (Core Concept: Position → Structure → Properties) Question 1 (2023 National B Exam) Which of the following statements about metal elements is correct? ( ) A. All metal elements are located in the s-block and d-block of the periodic table B. Elements with fewer than 4 electrons … Read more