Atoms and the Periodic Table Review Sheet Textbook: Section B, Chapter 1 1. What is the Atomic number of nitrogen? 2. How many protons does nitrogen have? 3. How many electrons does nitrogen have? 4. How many neutrons does nitrogen have? 5. What is the atomic mass of nitrogen? 6. How many neutrons does potassium have? What is the atomic number for potassium? What is the atomic mass? 7. Most of the mass of an atom is found in the n. 8. The Atomic mass is the mass of the p and N. 9. The Atomic number is the number of p. 10. The periodic table is arranged by atomic n. 11. Most of the elements on the periodic table are m.
12. The identity of an atom is related to the number of p in the nucleus. If the number of p changes, it becomes another element. 13. Using the periodic table of elements, identify whether the following are metals, non- metals or metalloids a. Carbon (C) b. Potassium (K) c. Silicon (Si) d. Antimony (At) e. Oxygen (O) f. Vanadium (V) 14. What do the periods (rows) on the periodic table tell you about an element? 15. What do the group numbers on the periodic table tell you about an element? 16. How many valence electrons (electrons in the outer ring) do the following have? a. Na (sodium) b. Zr (zirconim) c. B (Boron) d. Ne (Neon) 17. How many electron clouds do each of these elements have? a. Na (sodium) b. Zr (zirconim) c. B (Boron) d. Ne (Neon) 18. The number of protons in a neutral atom is equal to the number of a. Electrons b. Neutrons c. Ions d. Isotopes 19. In normal air, which of the following elements is most common? a. Nitrogen b. Oxygen c. Carbon dioxide d. Carbon monoxide
20. Which pair of elements is most similar? a. Ca and F b. Na and Cl c. Ne and Ar d. Li and H 21. In the periodic table, rows are called a. Periods b. Groups c. Classes d. Families 22. What is the last naturally found element on the periodic table? (NOT man- made) 23. What is the first radioactive element on the periodic table? 24. What is the definition of fission? 25. What is the definition of fusion? 26. Do nuclear power plants use fission or fusion? 27. What happens on the surface of the sun, fission or fusion? Section III: The structure of an atom 1. Who came up with the structure of an atom that has the electrons orbiting the nucleus in orbitals (rings)? 2. Who discovered the nucleus of an atom? 3. What does the atomic number tell you about the atom? 4. Which particles determine the type of element? (neutrons, protons or electrons) 5. If a Lithium atom gains a PROTON, what does it become? 6. How many protons and electrons does carbon have? 7. What is the atomic mass of an atom that has 8 protons, 8 neutrons and 8 electrons?
8. Is the order of atoms on the periodic table determined by the number of protons, electrons or neutrons that is has? 9. Which number is ALWAYS bigger, the atomic mass or the atomic number? 10. Which elements make up the atomic mass of an atom? 11. What is the charge (positive or negative) of a. The nucleus of an atom? b. The orbital rings outside the nucleus? Section IV: Reading the Periodic Table 1. How many electron clouds does gold (Au) have? 2. How many valence electrons (electrons in the outside ring) does Iodine (I) have? 3. What other atoms have similar properties to sodium (Na)? 4. What other atoms have similar properties to helium (He)? 5. Fill in the chart below for metals, non- metals and metalloids Shiny Ductile Malleable Conducts heat & Electricity i. Metals Non- metals Metalloids Review from the last test: 1. Which of the following is a chemical property of iodine? a. When liquid, it is a violet color b. When solid, it is a silver- blue color c. When it reacts with starch and changes to a dark blue color d. It is a solid at room temperature 2. What kind of change can be EASILY reversed? (chemical or physical) 3. What kind of change involves breaking bonds and creating a new substance (chemical or physical)?
4. The melting of wax is a physical change, yet the burning of wax is a chemical change. What is the difference between the two changes? a. Burning wax forms new compounds, while melting wax does not b. A higher temperature is needed to burn wax c. Melted wax can be separated into other substances, while solid wax cannot d. Melted wax is a different phase of matter than solid wax 5. In a mixture of salt and water, what is the solute? Salt or Water? 6. What is the universal solvent? 7. A special kind of mixture between two metals is called an a.