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Quinn science L1
Chemical Bonding
| Question | Answer |
|---|---|
| chemical bonding | the joining of atoms to form new substances |
| chemical bond | a force of attraction that holds two atoms together |
| valence electrons | the electrons in the outermost energy level of an atom, involved in forming chemical bonds |
| ionic bond | the force of attraction between oppositely charged ions, metal and a nonmetal |
| ions | charged particles that form during chemical changes when one or more valence electrons transfer from one atom to another |
| crystal lattice | a repeating three dimensional pattern of ions |
| covalent bond | the force of attraction between the nuclei of atoms and the electrons shared by the atoms, two non metals |
| metallic bond | the force of attraction between positively charged metal ion and the electrons in a metal, two metals |
| number of valence electrons in groups one and two | same as their group number |
| number of valence electrons in groups three through twelve | one or two |
| number of valence electrons in groups thirteen through eighteen | subtract ten from their group number |
| negative ion | when an atom gains electrons in ionic bonding |
| positive ion | when an atom loses electrons in ionic bonding |
| what group has a complete set of valence electrons | 18 |
| molecule | a neutral group of atoms held together by covalent bonds |