Recap - Dots on an Oxide

Part of the Structure and Bonding section of Coddy's Chemistry journey. Lesson 49 of 49.

Challenge

Magnesium burns with a dazzling white light and becomes magnesium oxide, MgO, an ionic solid made of Mg²⁺ ions and O²⁻ ions. In the reaction each magnesium atom gives its two outer electrons to an oxygen atom.

The magnesium ion is left with an empty outer shell. Draw the electron-dot picture of the oxide ion: its outer electrons as pairs.

Try it yourself

Work it out on the board

All lessons in Structure and Bonding

2Covalent Bonds

Sharing Electrons Counting Valence Electrons Drawing Lewis Structures Double and Triple Bonds Lone Pairs Formal Charge Lewis Structures of Ions Recap - Molecule Builder

5Forces Between Molecules

London Forces Dipole-Dipole Forces Hydrogen Bonds Boiling Points Like Dissolves Like Recap - Boiling Contest

8Practice Problems

Recap - Polar Bonds Survey Recap - Pigments and Hexane Recap - Butanol and EtherRecap - Dots on an Oxide

3Shapes of Molecules

Electron Groups Linear and Trigonal Planar Tetrahedral Molecules Pyramids and Bent Molecules Bond Angles Recap - Shape Detective

6Metals and Giant Structures

Metallic Bonding Diamond and Graphite Giant Covalent Structures Four Kinds of Substance Recap - Material Match