Common Assessment #4 Review Periodic Table and Characteristics of Elements Chemical Bonding

1. Which of the following shows that carbon is different from other elements? Its electrical charge Its use in photosynthesis Its number of protons Its ability to combine with oxygen

2. Which of these belongs in the outermost shell (energy level) of an atom? Photons Neutrons Protons Electrons

3. A proton has which of the following charges? Negative Neutral Positive Magnetic

4. Which of the minerals below is a sulfate? Gypsum (CaSO4) Calcite (CaCO3) Magnetite (Fe3O4) Radical Name Symbol Carbonate CO3 Silicate SiO3 Sulfate SO4 Oxide O

5. Which of these best shows that calcium is different from all other elements? It has a negative charge Its number of protons Its presence in water It has a positive charge

6. Temperatures in January 50 8 If the temperature continues to increase, what would the approximate temperature be on 8 January? A. 30 B. 40 C. 45 D. 50 or over

7. Which of the following molecules does NOT contain three atoms?

8. In the chemical formula for Carbon Dioxide, CO2, what does the subscript 2 represent? ? The number of carbon atoms in carbon dioxide The number of oxygen atoms in carbon dioxide The number of carbon dioxide molecules that will bond together The number of nitrogen atoms in carbon dioxide

9. In the chemical formula for carbon dioxide, CO2, what does the subscript 2 represent? The number of carbon and oxygen atoms in each molecule of carbon dioxide The number of carbon atoms in each molecule of carbon dioxide The number of oxygen atoms in each molecule of carbon dioxide

10. The three categories of elements are Akali family, akaline metals, noble gases Metal, Nonmetal, Alloys Metals, Nonmetals, Metalloids Colloids, Mixtures and Suspensions

11. Which statement about neutrons is true? Neutrons circle the atom in clouds Neutrons are positive subatomic particles Neutrons have a mass of 1 amu Neutrons have a negative charge

12. Magnesium is in group 2, row 3 12. Magnesium is in group 2, row 3. How many valence electrons does magnesium have? 1 2 3 4

13. What is the mass number of a carbon isotope that has 6 protons and 7 neutrons? 2 -2 13 14

14. An atom with an atomic number of 16 and a mass of 32 would have how many protons? 48 32 16 There is no way to tell with the information provided

15. The current model of an atom suggests that electrons travel in definite paths the exact path of an electron can be predicted proton clouds surround the nucleus electron clouds surround the nucleus

16. Which pair of atoms can form an ionic bond? Fluorine (F) and Chlorine (Cl) Sodium (Na) and Neon (Ne) Sodium (Na) and Potassium (K) Potassium (K) and Flourine (F)

17. Which group has a complete set of electrons in their outer energy level (valence electrons)? Noble gases Halogens Alkali metals Alkaline earth metals

18. Isotopes differ from each other because they have a different number of Electrons Neutrons Protons Atomic number

19. If an atom has a positive or negative charge it is called a(n) isotope Neutron ion proton

20. The average mass of all of the isotopes in an element (Carbon 12 20. The average mass of all of the isotopes in an element (Carbon 12.0107) is the mass number atomic number predicted reaction number atomic mass

21. Which of the following is a compound? Hydrogen (H) Sodium (Na) Oxygen (O) Carbon dioxide (CO2)

22. The diagram below shows a block from the periodic table 22. The diagram below shows a block from the periodic table. The number 11 represents the Atomic mass of the element Sodium Atomic number of the element Sodium Number of neutrons in the element Sodium Number of valence electrons in the element Sodium 23.0 Na 11

23. Characteristics of Samples of Matter Luster Malleability/Ductility Electrical Conductivity 1 None No Insulator 2 High Semi-conductor 3 Yes Conductor 4 Low According to the data in the table, which sample of matter is most likely a metal? A. 1 B. 2 C. 3 D. 4

24. What is the mass number of this atom? 1 2 3 6 A C B + D + +

25. What is the atoms atomic number? 1 2 3 6 A C B + D + +

26. Which of these elements has the lowest average atomic mass? 5 B Boron 10.811 6 C Carbon 12.011 7 N Nitrogen 14.0067 13 Al Aluminum 29.9815 14 Si Silicon 28.0855 15 P Phosphorous 30.97376 A. N B. B C. Si D. P

27. Name two nonmetals in the table below? Anything in yellow is a nonmetal

28. Name three metals in the table below? Anything in blue is a metal

29. Which of the elements listed below are metalloids 29. Which of the elements listed below are metalloids? Multiple Correct Answers Anything in red is a metalloid Boron (B) C. Silicon (Si) Lithium (Li) D. Flourine (F) E. Arsenic (As)

30. Which of the following lists the elements in order, from those having the least protons to those having the most protons in their atoms. A. Be, Li, Mg B. B, H, He C. N, C mB D. He, C, F

31. Which elements listed below are Noble Gases? A. He, Ne, Ar, Kr B. B, Al, Ga, In C. N, P, As, Se D. Li, Be, B, C

32. Name two elements that have the same number of valence electrons. All of the elements in the same family/group – columns going down, have the same number of valence electrons.

33. Name two elements that have the same number of electron levels. All of the elements in the same period, going across horizontally, have the same number of electron levels.

34. An atom has no overall charge if it contains equal number of Protons and neutrons Neutrons and electrons Electrons and protons None of the above

35. Using the graph below at what temperature does a liquid become a gas (vaporization)? oC 120 110 100 90 20 -10 -20 6 4 5 2 3 1 10 20… 80 90 110… 180 190 200… 720 730 740 750 Heat (Kcal) 0 Kelvin - 0 degrees Celsius - 100 degrees Celsius

36. The location of Metals, Nonmetals and Metalloids can be found by looking at The columns/groups C. None of the elements are metalloids, metals or nonmetals The rows/periods D. the zig zag line/staircase

37. Which of the following element(s) have more protons than Flourine (F). Multiple Correct Answers. Carbon (C) Lithium (Li) Neon (Ne) Helium (He) Argon (Ar)

38. An element that conducts thermal energy well, is shiny and malleable is a Nonmetal Metalloid Biotic organism Metal

39. Nonmetals are Good conductors of thermal energy Shiny Not malleable Ductile

40. What type of bond is illustrated below? Multiple Correct Answers Transfer of Electron Positive ion Negative ion Covalent Ionic Bond between a metal and nonmetal Bond between two metals Bond between two nonmetals

41. Which of the elements has 8 protons? Carbon B. Fluorine C. Neon D. Oxygen

42. What type of chemical bond is illustrated below 42. What type of chemical bond is illustrated below? MULTIPLE RESPONSE a. Covalent b. Ionic C. Bond between two nonmetals d. Bond between metals and nonmetals Sharing Electrons

44. Which of the following is an element? Na CO2

45. What is the density of the cube below 45. What is the density of the cube below? Density = mass volume Mass = 12g 0.5g/cm3 1.0g/cm3 1.5g/cm3 2.0g/cm3 4cm 2cm 3cm