Form 1

Introduction to Carbon and its Compounds – All living things contain carbon compounds.– These include carbohydrates, proteins, fats among others. Petrol, oil and wood are carbon compounds.– Carbon is incorporated in plants from carbon(IV) oxide during photosynthesis.– Carbon is one…

1. Ionic Chemical Bonding – Consider a specific case of ionic bonding between real elements, such as sodium and chlorine.– A sodium atom contains 11 protons and has an electronic arrangement of 2.8.1.– The arrangement differs from the nearest noble gas electronic…

Introduction to Chemical Families The physical and chemical properties of elements and their compounds are highly dependent upon the number of electrons that are found in their outermost energy level. When elements are arranged in the periodic table in order…

The are there are about 119 known elementsThe following illustration shows the names and symbols of first 20 elements of the periodic table. Atoms are very small particles of an element, but they contain even smaller particles called sub-atomic particles…