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UNIT 3 –TEST REVIEW 76% of ReWorded Test Questions 1 Atoms of which of the following elements have the MOST similar chemical properties as cadmium (Cd) atoms ? Zinc IS IN SAME GROUP AS Cd F gold (Au) G zinc (Zn) H silver (Ag) J copper (Cu) 2 In a comparison of metals to nonmetals in the same period, metals tend to — A have a lower atomic mass C have higher atomic numbers B be less reactive D have more valence electrons 3 Using the information in the Periodic Table, it is possible to determine that atoms of the elements aluminum (Al), silicon ( Si ), and phosphorus ( P ) are MOST similar in terms of — A luster C mass B hardness D corrosiveness 4 When determining an element’s chemical properties , the MOST important subatomic part to look at is — F positrons H protons G neutrons J valence electrons 5 Which of these groups in the Periodic Table is made from nonreactive elements ? A Group 1 B Group 4 C Group 17 D Group 18 6 Which of these groups in the Periodic Table is made from reactive metals ? F Group 1 G Group 6 H Group 17 J Group 18 7 Which of these groups (columns) in the Periodic Table is made up PRIMARILY of elements that are gases at room temperature? A Group 1 B Group 2 C Group 12 D Group 18 8 If you are looking at Period 4 of the Periodic Table….. a) which group on the Periodic Table would have the LARGEST atomic # ? Grp 18 b) which group of elements on the Periodic Table would have the SMALLEST atomic #? Grp 1 9 Based on what you know about the organization of the Periodic Table, which two elements Shown below would have the MOST similar chemical properties ? A sodium and magnesium C potassium and magnesium B sodium and potassium *Same Grp* D potassium and calcium 10. According to the Periodic Table, which of the following is the MOST accurate model of an atom of Boron? *B has 3 v.e’s (in Group 13), 5 P and 6 N 11 . What conclusion can you make about the elements shown above? F Phosphorus has more valence electrons than nitrogen. G Carbon has fewer protons in its nucleus than nitrogen . H Phosphorus is more like silicon than it is like nitrogen. J Aluminum is smaller than carbon. Questions 12 and 13 are over models ad 12 Which of the following models of an atom represents a stable atom that will not react? MODEL D because outershell is full! 13 Which of the following models of an atom represents a reactive metal ? Model A is NOT full! GO TO NEXT PAGE! 14 Which of the following atoms will have the MOST similar properties to the atom listed below? IV has 2 v.e. and it’s NOT full just like the one listed below _____________________________________________________________________ 15 Which of the following traits do Element I and Element II have in common ? A the same atomic number C the same atomic mass B the same number of energy levels D the same number of valence electrons 16. Which of the following elements would have the MOST similar chemical properties as Element I ? *Look at Group 2 on Periodic Table* F strontium H scandium G potassium J tantalum 17 . The most reactive metal is one with how many valence electrons ? 1(one) 18 . Group # _ 18_ _ in the Periodic Table have elements that are nonreactive gases and are poor conductors of electricity ( does not conduct electricity) .
