Across
- 3. Single electron or one of two or more electrons in the outer shell of an atom that is responsible for the chemical properties of the atom.
- 6. A chemical bond in which one pair of electrons is shared between two atoms.
- 7. The outermost shell of an element.
- 9. Bond that involves the sharing of electron pairs between two atoms.
- 11. A chemical bond between two atoms involving six bonding electrons instead of the usual two in a covalent single bond.
- 12. Chemical rule of thumb that reflects the theory that main-group elements tend to bond in such a way that each atom has eight electrons in its valence shell.
Down
- 1. A molecule formed by covalent bonds, in which the atoms share one or more pairs of valence electrons.
- 2. a pair of electrons occupying an orbital in an atom or molecule and not directly involved in bonding.
- 4. An atom in a molecule or polyatomic ion that is bonded to more than one other atom.
- 5. Representations of atoms/molecules using dots for electrons.
- 8. A generalization concerning acids and bases introduced in 1923 by the U.S. chemist Gilbert N. Lewis.
- 10. A covalent bond between two atoms involving four bonding electrons as opposed to two in a single bond.