The periodic table is a general map that classifies elements. The basic structure has noble gases, lanthanides, actinides, and transition metals. This describes the known matter that humankind is aware of. There could be more considering there are numerous Earth like exoplanets and substances not seen by any person yet. As atomic numbers reach the hundreds on the table, these elements can only be synthetically prepared. Each section lists the atomic mass, atomic number, and the element symbol. The table seeks to group elements in terms of their properties such as metals and non-metals. The periodic table is critical to the understanding of chemistry and physics.
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