Across
- 1. A shorthand way of identifying a chemical compound.
- 5. Type of covalent bond when electrons are shared equally.
- 7. A covalent bond in which two atoms share one pair of electrons.
- 11. A substance formed when two or more different elements are chemically bonded together.
- 13. Basic building block of life.
- 16. Formed when atoms share electrons. They occur between nonmetals, since they have the same or similar electronegativity values.
- 17. A neutral group of two or more atoms joined together by covalent bonds.
- 18. A diagram showing the arrangement of valence electrons in a molecule.
- 20. The electrostatic attraction that occurs between oppositely charged ions.
Down
- 2. Negatively charged ion.
- 3. A pair of electrons that are not shared in a bond.
- 4. Positively charged ion.
- 6. The attraction between metal atoms and their sea of shared electrons.
- 8. Type of covalent bond when electrons are shared unequally.
- 9. The tendency for atoms to prefer to have 8 electrons in the valence shell.
- 10. An atom or group of atoms that has gained or lost electrons, giving it a positive or negative charge.
- 12. Type of molecule that is made of two atoms, whether of the same element or not.
- 14. A pure substance consisting only of one type of atom.
- 15. The name we use for this unequal distribution of electric charge.
- 19. Type of compound that is made from only two elements.