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Ch.2 - Atoms & ElementsWorksheetSee all chapters

# Periodic Table: Charges

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Sections
The Atom
Subatomic Particles
Isotopes
Ions
Atomic Mass
Periodic Table: Classifications
Periodic Table: Group Names
Periodic Table: Representative Elements & Transition Metals
Periodic Table: Element Symbols
Periodic Table: Elemental Forms
Periodic Table: Phases
Periodic Table: Charges
Calculating Molar Mass
Mole Concept
Law of Conservation of Mass
Law of Definite Proportions
Atomic Theory
Law of Multiple Proportions
Millikan Oil Drop Experiment
Rutherford Gold Foil Experiment

Elements lose or gain electrons to have the ideal number of outer shell electrons like the noble gases.

###### Periodic Table Charges

Concept #1: Periodic Table: Charges

Metals lose electrons and become cations. Non-metals gain electrons and become anions.

Example #1: From what you know about ion formation and the Periodic Table, which ion would be unlikely to occur?

Concept #2: Main Group Elements

Example #2: Predict the charge that a gallium ion would possess.

Practice: Which element possesses a -2 charge when it combines with other elements?

Concept #3: Transition Metals (Type II Metals)

Transition metals have varying positive charges due to their electron arrangements.

Example #3: Predict the major charge of an ion if it were discovered to be in Period 10, Group 3B.

Practice: What is the likely charge of the element with an atomic number of 47?

Practice: How many electrons would the cadmium ion possess?