Periodic table Science KSSM FORM 1

Description

This document discusses the periodic table and classification of elements. It defines atoms and molecules, and differentiates between elements and compounds. Atoms are the smallest particles of elements, while molecules are made of two or more atoms combined together. Elements are pure substances made of one type of atom, while compounds can be broken down into their constituent elements. The document also describes the positioning of metals, non-metals and inert gases in the periodic table, and compares the characteristics and common uses of some metals like aluminum, iron, copper, gold and silver.