Lesson Plan: C1.2.04

Hamble Lesson Observation Plan
Learning About
What are the properties of Group 1 elements?
Keywords:
  • solutions: where substances are dissolved in water (1)
  • Metals: elements that donate electrons to form compounds (1)
  • Shielding: where the attraction from the nucleus is decrease as the shells are further away (1)
  • Reactivity: how easy an element will accept or donate electrons to form compounds (1)
  • physical properties: physical characteristics of elements (1)
Memory Anchor:
Method Precise Learning Objective Linked Question / Activity
(Designed for maximum working out)		 Stepping Stones Pitstop Check
(Thinking Map)
The elements in Group 1 of the periodic table are known as the alkali metals and have characteristic properties because of the single electron in their outer shell. What is the common name given to the group 1 elements?
Students should be able to explain the differences between metals and non-metals on the basis of their characteristic physical and chemical properties. This links to Group 0, Group 1, Group 7 and Bonding, structure and the properties of matter Give 4 common properties of transition metal elements.

Investigate the physical properties of transition metals
Students should be able to describe the reactions of the first three alkali metals with oxygen, chlorine and water. Write a word equation for the reaction of sodium with chlorine.
In Group 1, the reactivity of the elements increases going down the group. Describe the trend in reactivity in group 1 as you go down the group

Group 1 demo in water using universal indicator to show alkali solutions are formed. Try to catch the gas with a lit splint to demonstrate the squeaky pop.
Students should be able to explain how properties of the elements in Group 1 depend on the outer shell of electrons of the atoms For elements in Group 1, what do the properties depend on?

GF: Describe the forces that are involved in the transfer of electrons
Students should be able to predict properties from given trends down the group. Explain why elements become more reactive the further you go down group 1

Model the increasing size of atoms down group 1 using fluffy balls and rings drawn on tables or students draw configurations in their books to deduce why the reactivity increases. EW: Describe and explain why the reactivity of group 1 metals
The transition elements are metals with similar properties which are different from those of the elements in Group 1. What are the transition elements?

write word and symbol equations to show elements in same groups have similar reactions.
Students should be able to describe the difference compared with Group 1 in melting points, densities, strength, hardness and reactivity with oxygen, water and halogens. Compare the properties of transition metal elements with those of the group 1 elements.

Create a double bubble thinking map to compare group 1 and transition metals.
Students should be able to exemplify these general properties by reference to Cr, Mn, Fe, Co, Ni, Cu. Give examples of 3 transition metals
Links To the Big Ideas
ForcesParticlesEnergyCells