Landforms are natural physical features of the Earth's surface. As an element of topography, a landform is defined by its shape, location and how it was formed. Take a look at examples of landforms found on our planet as well as the minor landforms found in different biomes.
Ionic bonds are atomic bonds created by the attraction of two differently charged ions. The bond is typically between a metal and a non-metal. The structure of the bond is rigid, strong and often crystalline and solid. Ionic bonds also melt at high temperatures. Dissolved in water, ionic bonds are aqueous, that is, they can conduct. As solids they are insulators. Ionic bonds can also be called electrovalent bonds.