01 The alkali metals
The elements found in Group 1 of the periodic table are collectively known as the alkali metals. This group includes lithium, sodium, potassium, rubidium, caesium, and franciu...
02 Reactions of halogens
Halogens are the highly reactive non-metal elements found in Group 7 of the periodic table. This group includes fluorine, chlorine, bromine, iodine, and astatine. Their high r...
03 The halogens
The elements in Group 7 of the periodic table are collectively known as the halogens. These non-metals are highly reactive and exist as diatomic molecules, meaning each molecu...
04 Halogen displacement reactions
Halogen displacement reactions occur when a more reactive halogen displaces a less reactive halogen from its compounds. This principle is crucial for understanding the relativ...
05 The noble gases
The elements found in Group 0 of the periodic table are collectively known as the noble gases. These elements include helium, neon, argon, krypton, xenon, and radon, all of wh...
06 Extended response - Groups
The periodic table organizes elements into groups based on their similar chemical properties. Elements within the same vertical column, or group, share a common number of vale...
07 Rates of reaction
The rate of a chemical reaction quantifies how quickly reactants are consumed and products are formed. It is fundamentally determined by the frequency of successful collisions...
08 Investigating rates
Chemical reactions occur at varying speeds, from instantaneous explosions to the slow rusting of iron. The rate of reaction quantifies how quickly reactants are consumed or pr...
09 Skills - Rates of reaction
The rate of reaction measures how quickly reactants are consumed or products are formed over time. Understanding reaction rates is crucial in chemistry for optimizing industri...
10 Heat energy changes
Most chemical reactions involve a change in heat energy, leading to observable temperature shifts in their surroundings. These changes are fundamental to understanding how che...
11 Reaction profiles
Energy profile diagrams are visual tools that model the energy changes occurring throughout a chemical reaction. These diagrams illustrate the energy of reactants, products, a...
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