Chemistry deals with Matter, its composition, properties and behavior. Atoms are the small bits of Matter and learning atoms, elements, compounds and mixtures forms integral part of learning Chemistry.
What are atoms?
Atoms are the small bits of the Matter made from the particles of electron, neutron and protons. While protons are the carriers of positive electrical charge, electrons carry negative electrical charge and neutrons do not carry electrical charge. Protons and neutrons cluster in the central part (nucleus) of the atom. Electrons form the orbit around them. In an atom, protons and electrons are same in number and neutrons are as many in number as protons.
Elements are substances made from particular types of atoms. For example, hydrogen is an element made from atoms having one electron and one proton. Most of the atoms in hydrogen have no neutron, some of them have one neutron and some have more. These different forms of hydrogen are called isotopes. All isotopes in an element have the same number of protons but they may have different numbers of neutrons.
Compounds are made from joining two or more different chemical elements. For example, water is a compound made of the elements of hydrogen and oxygen. Table salt and table sugar are also compounds.
Know more about Mixtures
Mixtures are made from combining two or more different materials but it brings no chemical reaction. A mixture could be brought back to its original materials. Salt water and tossed salad are examples for mixtures.
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