Practice+Quiz+1

Practice Quiz a) Electrons b) Protons c) Neutrons d) Protons and neutrons a) 2-2-8 b) 8-8-8 c) 2-8-8 d) 8-8-2
 * 1. All atoms of a certain element, no matter the bonds created by the atom, will have the same number of ___. **
 * 2. Why is water considered the universal solvent? **
 * 3. How many electrons can each of the first 3 shells hold, going from closest to farthest from the nucleus? **
 * 4. Explain how sodium and chlorine bond. **
 * 5. What are the 4 characteristics of water? **
 * 6. How are water molecules held to one another? **
 * 7. Explain why water is polar. **
 * 8. What is a covalent bond? [[image:http://www.dkimages.com/discover/previews/769/85011519.JPG width="245" height="171" align="right"]] **
 * 9. What is an isotope? **
 * 10. What are the columns and rows of the periodic table called? **
 * 11. What are the building blocks of the four molecules of life?**
 * 12. What are the three functional groups?**
 * 13. How many hydrogens can bond with carbon?**
 * 14. What do DNA and RNA stand for and what are the three parts that make up them up?**
 * 15. What are the functions of the four molecules of life?**

