Chemistry XI Unit 3 Questions: 75 Time Limit: 75 minutes Passing Score: 60% Start Quiz Chemistry XI Unit 3 Question 1 of 75 The Periodic Table is organized based on: increasing atomic number atomic mass only number of neutrons chemical properties only Elements with similar properties are placed in: same period same group same block no pattern The s-block elements include: alkali metals and alkaline earth metals halogens and noble gases transition metals lanthanides and actinides Transition metals are found in: s-block p-block d-block f-block Which is a chalcogen? sodium phosphorus sulfur bromine The most electronegative element is: Cl F O N Halogens are found in group: 15 16 17 18 The first element in periodic table is: Helium Hydrogen Lithium Carbon Lanthanides have atomic number: 57-71 72-86 101-103 1-2 Actinides are: transition metals f-block elements radioactive elements all of above The period indicates: number of electron shells number of valence electrons atomic number molecular weight Which statement is true for Group 1? all have 2 valence electrons all have 1 valence electron all are transition metals all are noble gases The element in period 2, group 13 is: boron carbon beryllium silicon Metallic character decreases: down a group across a period from left to right down a group and across period with decreasing atomic number Which element is a metalloid? iron silicon sodium sulfur The diagonal relationship occurs between elements: in same period in adjacent groups in same group separated diagonally (like Li-Mg) Block classification is based on: which orbital is being filled atomic number chemical reactivity molecular mass The element with lowest atomic number is: Helium Lithium Hydrogen Carbon Alkali metals belong to group: 1 2 17 18 Alkaline earth metals belong to group: 1 2 17 18 Elements on right side of periodic table are: metals nonmetals metalloids semimetals The element in same position for all periods shows: vertical trends horizontal trends diagonal trends no trends Valence electrons generally increase: across period down group both horizontally and vertically in random order The number of elements in period 3 is: 8 10 18 2 Which is not a noble gas? Helium Neon Chlorine Argon The symbol for element with atomic number 26 is: Fe Cu Ni Mn Rare earth elements belong to: s-block p-block d-block f-block The element in Period 1 are: H and He only H, He, Li Li and Be first 10 elements Inert gases are another name for: halogens noble gases transition metals alkali metals The element Sulphur belongs to: Group 15 Group 16 Group 17 Group 18 FILLBLANK:Horizontal rows in periodic table are called _____ periods FILLBLANK:Group 1 elements are called _____. alkali metals FILLBLANK:Group 2 elements are called _____. alkaline earth metals FILLBLANK:Group 17 elements are called _____ halogens FILLBLANK:The d-block elements are called _____. transition metals FILLBLANK:Actinides are _____ elements. radioactive FILLBLANK:The symbol for Iron is _____ Fe FILLBLANK:The _____ elements are in Groups 1-2 and include alkali and alkaline earth metals. s-block FILLBLANK:Valence electrons increase as we move _____ across a period. from left to right from right to left randomly in waves FILLBLANK:Metallic character _____ as we go down a group. increases decreases stays constant fluctuates FILLBLANK:Atomic radius _____ as we move across a period. decreases increases stays constant alternates FILLBLANK:The _____ are elements that show properties of both metals and nonmetals. metalloids alkali metals transition metals noble gases FILLBLANK:The element Cu has atomic number _____ 29 25 30 24 FILLBLANK:The total number of groups in periodic table is _____ 18 17 16 32 FILLBLANK:The element Br belongs to group _____. 17 16 15 18 FILLBLANK:Group 14 elements are called _____. carbon family nitrogen family oxygen family halogen family FILLBLANK:The element _____ is the most reactive nonmetal. fluorine chlorine bromine iodine FILLBLANK:The _____ is the least reactive group of elements. Group 18 (noble gases) Group 1 (alkali) Group 17 (halogens) Group 2 (alkaline) FILLBLANK:The symbol for Potassium is _____ K Po P Ka FILLBLANK:The element with atomic number 8 is _____ oxygen nitrogen fluorine neon TRUE/FALSE: Atomic number increases left to right across period. TRUE FALSE TRUE/FALSE: Metallic character increases down a group. TRUE FALSE TRUE/FALSE: Electronegativity increases down a group. TRUE FALSE TRUE/FALSE: Period 4 contains 18 elements. TRUE FALSE TRUE/FALSE: All transition metals are radioactive. TRUE FALSE TRUE/FALSE: Noble gases are highly reactive. TRUE FALSE TRUE/FALSE: Alkali metals belong to s-block. TRUE FALSE TRUE/FALSE: Silicon is a metal. TRUE FALSE TRUE/FALSE: Halogens have 7 valence electrons. TRUE FALSE TRUE/FALSE: Lanthanides are all stable. TRUE FALSE TRUE/FALSE: The s-block contains Groups 1-2. TRUE FALSE TRUE/FALSE: Ionization energy increases down a group. TRUE FALSE TRUE/FALSE: Fluorine is less electronegative than Chlorine. TRUE FALSE TRUE/FALSE: Atomic radius increases across a period. TRUE FALSE TRUE/FALSE: Li and Mg show diagonal relationship. TRUE FALSE TRUE/FALSE: Period 1 contains 3 elements. TRUE FALSE TRUE/FALSE: Group 16 elements are called chalcogens. TRUE FALSE TRUE/FALSE: All elements in Group 18 are inert. TRUE FALSE TRUE/FALSE: Transition metals are in Groups 3-12. TRUE FALSE TRUE/FALSE: Actinides start from element 90 (Thorium). TRUE FALSE TRUE/FALSE: The periodic table has 7 periods. TRUE FALSE TRUE/FALSE: Elements in same period have same number of valence electrons. TRUE FALSE TRUE/FALSE: Atomic mass and atomic number are same. TRUE FALSE TRUE/FALSE: Shielding effect increases down a group. TRUE FALSE TRUE/FALSE: Electronegativity is highest in upper right of periodic table. TRUE FALSE Previous Next Submit Quiz Want to save your progress? Create an account or log in to track your quiz scores! Register/Login