English National Curriculum - Science
Mission Objectives
Describe and compare the key features of ionic, covalent and metallic bonding
Explain how the structure and bonding of a substance influences its physical properties
Apply knowledge of bonding to identify substances based on their properties
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Words and meanings to learn
ionic bonding
electrostatic attraction between oppositely charged ions, formed when electrons are transferred from a metal to a non-metal
covalent bonding
a bond formed when two non-metal atoms share pairs of electrons
metallic bonding
strong electrostatic attraction between a lattice of positive metal ions and delocalised electrons
lattice structure
a regular, repeating arrangement of ions or atoms in a solid, typically found in ionic and metallic substances
delocalised electrons
electrons that are not bound to one atom and are free to move throughout a metallic structure, allowing metals to conduct electricity
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