Chemical Bonds
7th Class General Science Chapter 6 Notes FBISE
Understand valency, cation and anion formation, writing chemical formulas using criss-cross method, ionic bonding, and covalent bonding for FBISE Class 7 chemistry exams.
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Looking for solved Class 7 General Science Chapter 6 Chemical Bonds notes for Federal Board (FBISE)? StudyPlusPlus offers complete SLO-aligned notes following the National Book Foundation (NBF) textbook for the 2026-2027 session. Master combining capacity (valency), cation and anion formation through electron loss or gain, writing chemical formulas, ionic bonds, and covalent electron-sharing bonds with conceptual MCQs and solved exercises.
Chapter Overview
Chapter 6 Chemical Bonds introduces Grade 7 students to chemical bonding mechanisms that hold atoms together in elements and compounds. Students begin by understanding valency—the combining capacity of an atom determined by its valence shell electrons to achieve stable octet or duplet configuration.
The chapter details the formation of ions, explaining how metals lose valence electrons to form positively charged cations (e.g. Na+) and non-metals gain valence electrons to form negatively charged anions (e.g. Cl-). It teaches the step-by-step criss-cross method for writing correct chemical formulas of ionic compounds like NaCl, MgO, and H2O.
Additionally, the chapter explores the two primary types of chemical bonds: ionic bonds formed by complete electron transfer between metals and non-metals, and covalent bonds formed by mutual sharing of electron pairs between non-metal atoms. Mastering these concepts prepares FBISE students for conceptual SLO board exam questions.
Chapter 6 Notes Material
Use the following study material to prepare Chapter 6 completely.
Download Chapter 6 PDF
Download the complete Class 7 General Science Chapter 6 Chemical Bonds solved notes PDF for offline studying. High-quality reference aligned with FBISE and NBF National Curriculum standards.