Lesson: Valence Science • First Year of Preparatory School

Students will be able to

• recall how the number of electrons in the outer shell of an atom affects chemical reactions,
• explain how atoms complete their outer shells of electrons during chemical reactions,
• define the term valence,
• use electronic configurations of atoms to deduce their valences,
• highlight elements that have multiple valences,
• give examples of polyatomic ions and their valences.