0

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...

Open eLMS Created 23/03/2026

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...

Open eLMS Created 23/03/2026

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...

Open eLMS Created 23/03/2026

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...

Open eLMS Created 23/03/2026

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...

Open eLMS Created 23/03/2026

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...

Open eLMS Created 23/03/2026

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...

Open eLMS Created 23/03/2026

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...

Open eLMS Created 23/03/2026

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...

Open eLMS Created 23/03/2026

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...

Open eLMS Created 23/03/2026

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...

Open eLMS Created 23/03/2026

12 Calculating energy changes

Chemical reactions involve the breaking of existing bonds and the formation of new ones. This process is always accompanied by a change in energy, which can either be released...

Open eLMS Created 23/03/2026

Our courses give general knowledge. Where stated, a course is CPD certified: CPD certification records learning time and is not a qualification or licence. No course replaces practical training, supervision or assessment of competence. Never carry out hazardous work (for example at height, with lifting equipment, electricity, gas or machinery) on the strength of a course alone. Terms