Brighton Secondary College YEAR 9 SCIENCE TEST Student name Form Topic Test Chemistry: The Periodic Table Semester One Reading Time Five (5) Minutes Writing Time Forty (40) Minutes Teacher Structure of this booklet SKU Section A – True/False Questions 10 Marks Section B – Short Answer Questions 20 Marks Section C – Extended Answer Questions 10 Marks RPI Total Instructions Answer all Written Answer questions in the spices provided. Progress Point Score Range Science Knowledge & Understanding (SKU) 5.00 10-14 Explain the structure and properties of matter in terms of the particle model. 5.25* 15-19 Use the language of chemistry to explain the structure and properties of matter in terms of the particle model and electron shell model of the atom. 5.50 19-24 Use the language of chemistry to explain the structure and properties of elements and ionic compounds in terms of the electron shell model. Progress Point Score Range 5.00 10-14 Uses information processing skills to solve problems involving a few variables. 5.25* 15-19 Uses information-processing skills in problem-solving activities that involve many variables. 5.50 19-24 Uses information-processing skills in problem-solving activities that involve many variables and possible solutions. Reasoning, Processing and Inquiry (RPI) Periodic Table of the Elements 1 18 1 H 1.008 2 He 4.003 3 Li 6.941 2 4 Be 9.012 13 5 B 10.81 14 6 C 12.01 15 7 N 14.01 16 8 O 16.00 17 9 F 19.00 11 Na 22.99 12 Mg 24.31 13 Al 26.98 14 Si 28.09 15 P 30.97 16 S 32.07 17 Cl 35.45 18 Ar 39.95 19 K 39.10 31 Ga 69.72 32 Ge 72.61 33 As 74.92 34 Se 78.96 35 Br 79.90 36 Kr 83.80 20 Ca 40.08 3 21 Sc 44.96 4 22 Ti 47.88 5 23 V 50.94 6 24 Cr 52.00 7 25 Mn 54.94 8 26 Fe 55.85 9 27 Co 58.93 37 Rb 85.47 38 Sr 87.62 39 Y 88.91 40 Zr 91.22 41 Nb 92.91 42 Mo 95.94 43 Tc (99) 44 Ru 101.1 45 Rh 102.9 55 Cs 132.9 87 Fr (223) 56 Ba 137.3 88 Ra (226) 71 Lu 175.0 103 Lr (257) 72 Hf 178.5 104 Rf (257) 73 Ta 180.9 105 Ha (260) 74 W 183.9 106 Sg (263) 75 Re 186.2 107 Ns (262) 76 Os 190.2 108 Hs (265) 77 Ir 192.2 109 Mt (266) LANTHANIDE SERIES 57 La 138.9 58 Ce 140.1 59 Pr 140.9 60 Nd 144.2 61 Pm (145) 62 Sm 150.4 ACTINIDE SERIES 89 Ac (227) 90 Th 232.0 91 Pa (231) 92 U 238.0 93 Np (237) 94 Pu (242) 10 28 Ni 58.69 Hf 46 178.573 Pd Ta 106.4 180.974 78 W Pt 183.975 195.1 Re 186.276 Os 190.277 Ir 63 Eu 192.278 152.0 Pt 195.179 95 Am Au 197.080 (243) Hg 200.681 Tl 204.482 Pb 10 Ne 20.18 11 29 Cu 63.55 12 30 Zn 65.39 47 Ag 107.9 48 Cd 112.4 49 In 114.8 50 Sn 118.7 51 Sb 121.8 52 Te 127.6 53 I 126.9 54 Xe 131.3 79 Au 197.0 80 Hg 200.6 81 Tl 204.4 82 Pb 207.2 83 Bi 209.0 84 85 Po At (~210) (~210) 86 Rn (~222) 64 Gd 157.3 65 Tb 158.9 66 Dy 162.5 67 Ho 164.9 68 Er 167.3 69 Tm 168.9 70 Yb 173.0 96 Cm (247) 97 Bk (247) 98 Cf (249) 99 Es (254) 100 Fm (253) 101 Md (256) 102 No (254) Section A—Multiple choice questions This section assesses your science knowledge and understanding. For each question, circle the letter of the one best answer. You may benefit by referring to the Periodic Table included. 1 The atom represented by the symbol A 6 protons, 6 neutrons B 6 protons, 8 neutrons C 14 protons, 6 neutrons D 14 protons, 8 neutrons 2 According to the Periodic Table of the Elements, the most common isotope of Aluminium contains A B C D 3 13 13 14 27 protons protons protons protons and and and and 13 14 27 40 14 C 6 has neutrons neutrons neutrons neutrons The vertical columns in the periodic table are known as: A periods, and they contain elements with the same number of outer-shell electrons B periods, and they contain elements with the same number of occupied electron shells C groups, and they contain elements with the same number of outer-shell electrons D groups, and they contain elements with the same number of occupied electron shells 4 Moving down Group 1 in the Periodic Table, A B C D 5 the the the the number number number number of of of of occupied occupied occupied occupied electron electron electron electron shells shells shells shells increases increases at first then decreases decreases decreases at first then increases An atom of potassium has 19 electrons. Its electron shell configuration would best be written as: A B C D 19 2, 17 2, 8, 9 2, 8, 8, 1 6 Which of the following is a property of an element? A B C D 7 Which of the following lists contains only compounds? A B C D 8 number of shells the colour, “white” number of electrons density water H2O, glucose C6H12O6, carbon dioxide CO2 lead Pb, phosphorus P, chlorine Cl2 graphite C, limewater Ca(OH)2, and sodium Na sodium chloride NaCl, oxygen O2 iron Fe Silicon is lustrous and is a conductor of heat and electricity, but is not malleable or ductile. For this reason, silicon is known to be a… A B C D metal non-metal metalloid all of the above 9 A particular element is a poor conductor of electricity. Which class of elements could this element belong to? A transition metals B alkali metals C alkali earth metals D halogens 10 The elements in Groups 1 and 2 are known respectively as A Alkali metals, Halogens B Halogens, Noble Gases C Halogens, Transition Metals D Alkali metals, Alkali Earth metals Section A: / 10 Section B—Written answers This section assesses your science knowledge and your reasoning ability.Write answers to each question in the spaces provided. 1 Complete the table below, filling in the missing atomic numbers, chemical symbols and names. Atomic Chemical Number Symbol 3 14 Name Group Lithium 2 Si 3 Sulfur 20 Ca 50 Sn Period 16 3 Calcium 14 (5 marks) 2 a) Complete this electron shell diagram of an atom of carbon, with atomic number 6. b) In what two ways does this electron shell diagram indicate the position of Carbon on the Periodic Table of the Elements? (2 marks) 3 Clearly describe two properties of metals. a) b) (2 marks) 4 Complete the table below showing details of the three main sub-atomic particles. Particle Charge Location Proton shells neutral (3 mark) 5 Give the name (NOT the symbol) of a) a reactive metal whose atoms form ions with a charge of +2 b) a reactive non-metal whose atoms form ions with a charge of 1 c) an unreactive non-metal whose atoms tend not to form ions (3 marks) 6 Give the chemical symbol (not the name) of a Period 4 element a) in the same group as fluorine b) that is a transition metal in the same group as silver and gold c) that is NOT a transition metal and forms ions of charge +2 (3 marks) 7 Name the elements present in the following molecules (no marks will be awarded for chemical symbols) a) SO₂ b) C2H4O2 (2 marks) Section B: /20 Section C—Extended Answer Questions This section assesses your science knowledge and your reasoning ability.Write answers to each question in the spaces provided. 1 The electron shell configuration of chlorine is 2, 8, 7 a) Circle the number of electrons lost or gained by a chlorine atom to become more stable 2 1 +1 +2 b) Write the electron shell configuration of a choride ion (2 marks) 2 The ammonium ion is written NH4+ a) How many atoms of hydrogen are in an ammonium ion? b) What is the charge normally formed by a nitrogen ion when it gains electrons to form a stable (or happy) electronic configuration? c) In an ammonium ion, the nitrogen atom only loses one valence electron from its outer shell. This gives the ammonium ion its positive charge. How many valence electrons does the nitrogen atom have after it loses that electron? d) What is the ratio of chloride (Cl) ions to ammonium ions in the compound, ammonium chloride? (4 marks) 3 The arrangement of atoms, ions and molecules in a compound can be classified in three ways: an atomic substance contains atoms that are not bonded to other atoms a molecular substance contains molecules, with each molecule having two or more atoms bonded together a a lattice is composed of lots of interconnected atoms or ions, all bonded together to form a pattern Five diagrams, labelled v to z, are shown below. Use the letters v to z to answer the questions that follow. Give the letter of the diagram which best represents: a) atoms of argon ______ b) water molecules (H2O) ______ c) a mixture of two molecular compounds ______ d) a potassium chloride lattice (KCl) ______ (4 marks) Section C: /10