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