Chemistry Study Guide – 40+ Solved Questions | Periodic Trends, Electron Configuration & Ionization Energy | 2025/2026

This expertly crafted Chemistry Study Guide offers 40+ well-explained exam questions and answers focused on periodic table trends and atomic structure, specifically for the 2025/2026 academic year. Designed for success in both high school and early college chemistry courses, it delves into key principles including atomic radius, ionization energy, electronegativity, electron configuration, and group/period properties. Students will gain a firm grasp of: Periodic trends: increasing/decreasing patterns of size, charge, and energy Chemical reactivity based on valence electron configurations Group vs. period behaviors among alkali metals, halogens, noble gases, and transition elements Electron shielding, nuclear charge, and their effects on atomic size Element classification (metals, nonmetals, transition metals) This study guide not only clarifies theory but also includes applied reasoning with periodic data and example questions directly linked to common exam formats. This guide is ideal for: High school students enrolled in General, Honors, or AP Chemistry College students taking Introductory Chemistry or Principles of Chemistry Science-track students, including those in pre-med, engineering, and environmental sciences Tutors and instructors seeking quality practice material for trend-based chemistry review It serves as a focused reference for mastering the Periodic Table and understanding electron behavior, both foundational to more advanced chemistry topics. Keywords: periodic trends, ionization energy, atomic radius, electronegativity, valence electrons, group elements, electron configuration, transition metals, shielding effect, nuclear charge, halogens, noble gases, periodic table properties, chemical reactivity, chemistry fundamentals