Across
- 2. Organic compounds that contain both amino and carboxylic acid
- 3. Forms of the same element that contain equal numbers of protons but different numbers of neutrons
- 6. The building block of life
- 8. An action or process that releases heat
- 9. a substance that can be found on the periodic table
- 10. bond A chemical bond that involves the sharing of electrons
Down
- 1. An organic molecule that includes carbohydrates, protein, lipids, and nucleic acids
- 4. An action or process that stores/ accumulates heat
- 5. The first element on the periodic table
- 7. A chemical bond formed by the attraction of oppositely charged ions