Ch.2 - Atoms & ElementsWorksheetSee all chapters
All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds

Solution: Predictable charges of some common ions. Notice that the red stepped line that divides metals from nonmetals also separates cations from anions. Hydrogen forms both 1+ and 1- ions.The most common ions

Problem

Cations are shown primarily at the left side of the table, in groups 1A, 2A. The transitional metals at the center of the table separate these cations from the last cation shown (Al3+) on group 3A, on the border of the red stepped line that separates the cations from the anions. The anions are found in groups 5A to 7A, with 7A bordering the noble gases in (group 8A). The common ions are described as follows. Group 1A are cations that include the symbols H +, Li +, K +, Rb +, and Cs +. Group 2A are cations that include the symbols Mg 2+, Ca 2+, Sr 2+, and Ba 2+. Group 3A are cations that include the symbol Al 3+. Group 5A are anions that include the symbol N 3-. Group 6A are anions that include the symbols O 2-, S 2-, and Te 2-. Group 7A are cations that include the symbols H -, F -, Cl -, Br -, and I -.Predictable charges of some common ions. Notice that the red stepped line that divides metals from nonmetals also separates cations from anions. Hydrogen forms both 1+ and 1- ions.

The most common ions for silver, zinc, and scandium are Ag+, Zn2+, and Sc3+. Which of these ions have the same number of electrons as a noble-gas element?