Atoms - basic units of matter which consist of protons, neutrons and electrons, Neutrons  - large particles with no charge located in the nucleus, Electrons - small, negatively charged particles located in atomic orbitals, Compounds  - groups of two or more elements bonded together through chemical forces, Ions  - atoms or molecules in which the total number of electrons is not equal to the number of protons and are either positively or negatively charged , Covalent Bonds - occur when the atoms share electrons and are between only nonmetals, Ionic Compounds - composed of cations and anions which are held together by the strong attraction of the positive and negative charges of the ions , Ionic Bonds - atoms or molecules in which the total number of electrons is not equal to the number of protons and are either positively or negatively charged, Protons  - large, positively charged particles located in the nucleus, Homogeneous Mixtures - mixtures which are the same throughout, with identical properties everywhere in the mixture, Heterogeneous Mixtures - mixtures which have different properties when sampled from different areas, Chemical Elements - pure substances consisting of one type of atom which cannot be broken down or changed into another substance,

Full Basic Chemical Principles 1

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