Periodic table of elements

The periodic table of elements is a chart that organizes all known chemical elements based on their properties and atomic structure. Elements are arranged in rows (periods) and columns (groups) reflecting similarities in reactivity and characteristics. Each element is represented by a symbol, with its atomic number indicating the number of protons in its nucleus. This arrangement helps scientists predict how elements will interact in chemical reactions and understand the building blocks of matter, from the air we breathe to the materials in electronics and medicines. It is a fundamental tool in chemistry for studying and understanding the universe.