Chemical Bonds
Grade 8 · Science · Chemistry · Virginia, USA
Lesson Summary
Learn how atoms connect to each other through ionic and covalent bonds.
Explanation
Atoms bond with each other to become more stable, usually by filling their outer electron shell. In an ionic bond, one atom gives electrons to another, creating charged ions that attract each other—like sodium and chlorine forming table salt. In a covalent bond, atoms share electrons—like two hydrogen atoms sharing to form H₂. Ionic bonds typically form between metals and nonmetals, while covalent bonds form between nonmetals.
Practice Questions
Q1: What is the difference between ionic and covalent bonds?
Answer: In ionic bonds, electrons are transferred from one atom to another. In covalent bonds, electrons are shared between atoms.
Q2: What type of bond forms between sodium (a metal) and chlorine (a nonmetal)?
Answer: An ionic bond. Sodium transfers an electron to chlorine, forming Na⁺ and Cl⁻ ions that attract each other.
Q3: Why do atoms form bonds?
Answer: To achieve a full outer electron shell, which is a more stable and lower-energy arrangement.
People Also Ask
What is Chemical Bonds in Grade 8 Science?+
Chemical Bonds is a lesson in the Chemistry chapter of Grade 8 Science. It is part of the Virginia, USA school curriculum and covers key concepts that students need to understand at this level.
What grade level covers Chemical Bonds?+
Chemical Bonds is taught in Grade 8 as part of the Science curriculum in Virginia, USA.
How can I help my child with Chemistry in Science?+
Start with the lesson summary and explanation on this page. Practice the questions provided, then use TutorTom for personalized, step-by-step help with Chemistry topics.