Across
- 2. a bond formed by the attraction between oppositely charged ions
- 4. the attractive force that holds atoms or ions together
- 6. any one of 20 different organic molecules that contain a carboxyl and an amino group and that combine to form proteins
- 8. a large molecule that is formed by more than five monomers, or small units
- 10. the composition of a compound in terms of the relative numbers and kinds of atoms in the simplest ratio
- 11. the angle formed by two bonds to the same atom
- 12. a bond formed by the attraction between positively charged metal ions and the electrons around them
- 14. a covalently bonded compound that contains carbon, excludingcarbonates and oxides
- 15. any organic compound that is made of carbon, hydrogen, and oxygen and that provides nutrients to the cells of living things
Down
- 1. a bond formed when atoms share one or more pairs of electrons
- 3. a chemical formula that shows the number and kinds of atoms in a molecule, but not the arrangement of atoms
- 5. an ion made of two or more atoms
- 7. an organic compound that is made of one or more chains of amino acids and that is a principal component of all cells
- 9. the arrangement of atoms in a substance
- 13. the average distance between the nuclei of two bonded atoms