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Explain the following terms a) Element. b) Atom. c)Moleclue |
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Answer» 1.In chemistry, an element is a pure substance consisting only of atoms that all have the same numbers of PROTONS in their atomic nuclei. Unlike chemical compounds, chemical elements cannot be broken down into simpler substances by chemical means.2.Atoms consist of a nucleus MADE of protons and neutrons orbited by electrons. ... We now know that atoms are made up of THREE PARTICLES: protons, neutrons and electrons — which are composed of even smaller particles, such as quarks.3.the smallest unit into which a substance can be divided without changing its chemical nature |
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