Elements are pure substances made of one type of atom, like oxygen or iron. Compounds are substances formed when two or more elements chemically combine, like water or carbon dioxide. Compounds have different properties than their individual elements.
Class 8 Science Curiosity Textbook Chapter 1 Exploring the Investigative World of Science question answer
Class 8 Science Curiosity Grade 8 Chapter 1 Exploring the Investigative World of Science solutions
Elements are the basic building blocks of matter, made up of only one kind of atom. Examples include hydrogen, oxygen and gold. Compounds form when atoms of different elements chemically join in fixed ratios, like in water (H₂O) or salt (NaCl). Unlike elements, compounds have properties different from the elements they’re made of. For instance, sodium is a metal and chlorine is a gas, but together they form edible salt. This distinction is key in chemistry.
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