Elements are the building blocks of all matter in the universe, with 118 currently known to us. These elements are organized on the periodic table based on their atomic number and properties. Each element has a unique set of characteristics, such as its atomic structure, reactivity, and physical state. Some elements are essential for life, like oxygen and carbon, while others are toxic, like mercury and lead. Elements can combine to form compounds, creating an endless array of substances. Understanding the properties and behaviors of elements is crucial in fields such as chemistry, physics, and materials science.
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