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