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  1. Atoms, in general, seem to be extroverts. They can easily combine with one another and form more complex particles called molecules. Molecules are groups of atoms held together by chemical bonds and possess no net charge. Molecules can simply be defined as the way atoms exist in nature.

    • Hybridisation

      Hybridisation (or hybridization) is a process of...

  2. An atom is the simplest particle of an element. In a particle diagram, atoms are represented by a single coloured circle. When atoms of two or more elements bond together, they make a...

  3. Elements, compounds and mixtures - BBC Bitesize. Key points. Everything in the known universe is made up of the elements found on the periodic table. There are over 100 different....

  4. chemistry, the science that deals with the properties, composition, and structure of substances (defined as elements and compounds), the transformations they undergo, and the energy that is released or absorbed during these processes.

  5. 4.1.1.1 Atoms, elements and compounds. All substances are made of atoms. An atom is the smallest part of an element that can exist. Compounds are formed from elements by chemical reactions. Compounds contain two or more elements chemically combined in fixed proportions and can be represented by formulae using the symbols of the atoms from which ...

  6. A compound is a substance that contains atoms of two or more different elements, chemically joined together. For example, water is a compound of hydrogen and oxygen, chemically joined together.

  7. A compound is a substance composed of two or more elements joined by chemical bonds. For example, the compound glucose is an important body fuel. It is always composed of the same three elements: carbon, hydrogen, and oxygen. Moreover, the elements that make up any given compound always occur in the same relative amounts.