Lesson Plan: C1.3.01

Hamble Lesson Observation Plan
Learning About
What are chemical bonds?
Keywords:
  • Electrostatic attraction: the phenomenon where a negatively charged atom or molecule is attracted to a positively charged atom or molecule (1)
  • Metallic bond: is a type of chemical bonding that arises from the electrostatic attractive force between conduction electrons and positively charged metal ions. (1)
  • Covalent bond: A chemical bond formed between non-metal atoms, which combine together by sharing electrons. (1)
  • Ionic bond: A chemical bond formed by the electrostatic attraction of oppositely charged ions. Formed between a metal and non-metal. (1)
Memory Anchor:
Method Precise Learning Objective Linked Question / Activity
(Designed for maximum working out)		 Stepping Stones Pitstop Check
(Thinking Map)
Recap atomic stability being having a full outer shell of electrons.

There are three types of strong chemical bonds: ionic, covalent and metallic. ALTERNATIVE activity - independent thinking. How can different atoms interact with each to gain a full outer shell of electrons.

Give students several diagrams each showing an electronic configuration of a different atom. Some metals and some non-metals. Start with group 7 and group 1 elements - how could they interact to get a full outer shell? Next do group 6 and group 2. GF: group 6 and group 1. Move on to two group 7 - how could they interact to get a full outer shell? GF: two group 6. Finally, two group 1 elements - cannot interact so electron delocalises.
There are three types of strong chemical bonds: ionic, covalent and metallic. What are the three types of chemical bonding?

Experts in bonding. Put students in threes and get them each to find out information on each type of bond. Return and share their findings. Record results in table.
For ionic bonding the particles are oppositely charged ions. Name the type of attraction between particles in an ionic bond

Demo electrostatic attraction with pupil particles.
For covalent bonding the particles are atoms which share pairs of electrons. In terms of electrons, how are covalent bonds formed?

Modelling of electron sharing, transfer and delocalisation with fluffy balls.
For metallic bonding the particles are atoms which share delocalised electrons. Metallic bonds have delocalised electrons. What are delocalised electrons?
Ionic bonding occurs in compounds formed from metals combined with non-metals. Ionic bonding occurs in compounds formed from ________ combined with ___________.
Covalent bonding occurs in most non-metallic elements and in compounds of non-metals. Covalent bonding occurs when _____________ atoms bond together.
Metallic bonding occurs in metallic elements and alloys. Metallic bonding occurs between atoms of __________ elements.
Students should be able to explain chemical bonding in terms of electrostatic forces and the transfer or sharing of electrons. What is chemical bonding?
Links To the Big Ideas
ForcesParticlesEnergyCells