Relier Pairs AtomsVersion en ligne Atoms par Patricia Gallego Galvez 1 Atom 2 Metalic bond 3 Ionic bond 4 Jonh Dalton 5 Mass number (A) 6 Atomic number (Z) 7 Electrons 8 Ionic crystals 9 Molecule 10 Niels Bohr 11 Atomic nucleus 12 Neutrons 13 Ernest Rutherford 14 Ions 15 Metalic crystals 16 Covalent bond 17 Chemical bond 18 Molecule properties 19 Isotopes 20 Periodic Table of Elements 21 J. J. Thomson 22 Atomic Shell 23 Protons 24 Covalent crystals The smallest unit of matter that constitutes a chemical element. The number of protons in the nucleus of an atom The sum of the number of neutrons and protons in an atomic nucleus Charged atoms From low to high melting and boiling points, insoluble in water and very good electrical conductors Heavy positively charged particles found within atomic nuclei. Formed when one or more electrons are transferred from one metal to non-metal atom Heavy uncharged particles found within atomic nuclei Liquids or gases at room temperature. Some can be solid, but they melt at low temperatures. A grouping of electrons surrounding the nucleus of an atom An atom's dense central core, containing protons and neutrons. Very high melting and boiling points, insoluble in water and not good electrical conductors An attraction between a positive metal ion and the electrons surrounding it The force that holds atoms together Very high melting and boiling points, soluble in water and good electrical conductors in solution or molten Negatively charged particles, with very small mass, found outside the nucleus Two or more non-metal atoms held together by covalent bonds A chemical bond formed when non-metal atoms share electrons Atoms of the same element that have different numbers of neutrons A table that classifies elements by their physical and chemical properties; rows are called periods; columns are called groups;
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