SCIENTIFIC LITERACY 
                                                                                                                                                                                                                                                                                                                                                  THEME : PERIODIC CLASSIFICATION OF ELEMENTS 
                                                                                                                                                                                                                                                                                                                                                                   UNIT 1 : IUPAC NOMENCLATURE OF ELEMENTS 
                                                                                                                                                       While studying the arrangement of elements Aditya found that there are some elements with 
                                                                                                                                                       atomic number greater than 100 have not named till now as per the periodic table. He tried to 
                                                                                                                                                       find the system to know their names and he found that IUPAC recommended a system of 
                                                                                                                                                       naming new elements till they have given a proper name. the table for naming the elements is 
                                                                                                                                                       given below. With every name a suffix ‘ium’ is added. 
                                                                                                                                                        
                                                                                                                                                                  Digit                                                                                                                                                   0                                                                               1                                                                                2                                                                              3                                                                               4                                                                                    5                                                                                    6                                                                                  7                                                                                   8                                                                                 9 
                                                                                                                                                                  Root                                                                                                                                                    nil                                                                             un                                                                               bi                                                                             tri                                                                             quad                                                                                 pent                                                                                 hep                                                                                sept                                                                                oct                                                                               Enn 
                                                                                                                                                                  abbreviation  n                                                                                                                                                                                                                         u                                                                                b                                                                              t                                                                               q                                                                                    p                                                                                    h                                                                                  s                                                                                   o                                                                                 e 
                                                                                                                                                        
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
                                                                                                                                                       Question 1 
                                                                                                                                                       The IUPAC name for the element with atomic number 120 is 
                                                                                                                                                                                            (a) Ununquadrdium 
                                                                                                                                                                                            (b) Unununium 
                                                                                                                                                                                            (c)  Unbinilium 
                                                                                                                                                                                            (d) unmilennium 
                                                                                                                                                       Question 2 
                                                                                                                                                       The symbol for IUPAC element unnilquadium is 
                                                                                                                                                                                            (a) unt 
                                                                                                                                                                                            (b) unq 
                                                                                                                                                                                            (c)  uno 
                                                                                                                                                                                            (d) uub 
                                                                                                                                                       Question 3 
                                                                                                                                                       what is the name and symbol of element with atomic number 118? 
                                                                                                                                                       -------------------------------------------------------------------------------------------------------------------------------
                                                                                                                                                       ------------------------------------------------------------------------------------------------------------------------------- 
                                                                                                                                                       Question 4 
       Write the name and atomic number of element with symbol uuu 
       -------------------------------------------------------------------------------------------------------------------------------
       ------------------------------------------------------------------------------------------------------------------------------- 
                           
                           
              UNIT 2 : ELEMENT POSITION IN PERIODIC TABLE 
       Three elements X, Y, and Z have atomic numbers 10, 21 and 32 respectively. Garima wants to 
       explain the properties of these elements according to the Modern Periodic Table. On studying 
       the modern periodic table, Garima could answer the following questions. 
        
       Question 1  
       in which group does the element X exist? 
       ------------------------------------------------------------------------------------------------------------------------------- 
       Question 2 
       In which period does the element Y exist? 
       ------------------------------------------------------------------------------------------------------------------------------- 
       Question 3 
       What is the valency of element Z? 
       ------------------------------------------------------------------------------------------------------------------------------- 
        
       Question 4 
       Arrange the three elements X, Y and Z from non-metal to metal. 
       ----------------------------------------------------------------------------------------------------------------------------- 
                           
                           
                UNIT 3 : CHEMICAL NATURE OF ELEMENTS ACCORDING TO POSITION IN 
                                        PERIODIC TABLE 
            Abdul and Raghav were discussing about the chemical nature of elements as they are given the 
            position in modern periodic table. Raghav wanted to know about the metallic and non-metallic 
            nature of the elements while Abdul was interested in oxidation of elements. After studying the 
            periodic table thoroughly and discussion they are able to understand the position of chemicals 
            and their chemical nature. 
             
            Question 1 
            Abdul said Ca20 will form oxide by reacting with oxygen as CaO2. Do you agree with Abdul? 
            Justify your answer. 
            -------------------------------------------------------------------------------------------------------------------------------
            -------------------------------------------------------------------------------------------------------------------------------
            ------------------------------------------------------------------------------------------------------------------------------- 
            Question 2 
            Raghav said that along the period of periodic table, metallic nature of elements decreases. Is he 
            correct? 
            -------------------------------------------------------------------------------------------------------------------------------
            -------------------------------------------------------------------------------------------------------------------------------
            ------------------------------------------------------------------------------------------------------------------------------- 
            Question 3 
            Iron forms its oxide as Fe O  and Fe O Give reason for such behavior of iron. 
                              2 3     3 4. 
            -------------------------------------------------------------------------------------------------------------------------------
            -------------------------------------------------------------------------------------------------------------------------------
            ------------------------------------------------------------------------------------------------------------------------------- 
            Question 4 
            Raghav said that between sodium hydroxide and potassium hydroxide, NaOH is more basic in 
            nature. According to you which is more basic NaOH or KOH? 
           -------------------------------------------------------------------------------------------------------------------------------
           -------------------------------------------------------------------------------------------------------------------------------
           ------------------------------------------------------------------------------------------------------------------------------- 
                                              
                                              
                         UNIT 4 ANOMALY IN MODERN PERIODIC TABLE 
           Meenal studied the modern periodic table and found some anomalies in it. She found two 
           positions of hydrogen in periodic table while helium get a special position. Similarly after 
           lanthanum with atomic number 57, the next element is not Cesium with atomic number 58. But 
           there is another element Hafnium with atomic number 72. Similarly after Actinium with atomic 
           number 89, next element is not thorium with atomic number 90 but there is another element 
           Rutherfordium with atomic number 104. 
           She found that at the bottom of periodic table there are two series of elements in which these 
           missing elements are placed. She wanted to know the reason behind it. 
                                              
           Question 1 
           Hydrogen has given two positions in the periodic table. Give reason. 
           -------------------------------------------------------------------------------------------------------------------------------
           -------------------------------------------------------------------------------------------------------------------------------
           ------------------------------------------------------------------------------------------------------------------------------- 
           Question 2 
           Helium has not got a proper position in periodic table. It has only two electrons in its orbit but it 
                 th                                              nd
           lies in 18  group. According to preparation of periodic table it should be in 2  group. Justify the 
           reason. 
           -------------------------------------------------------------------------------------------------------------------------------
           -------------------------------------------------------------------------------------------------------------------------------
           ------------------------------------------------------------------------------------------------------------------------------- 
           Question 3 
           In 6th period, after lanthanum of atomic number 57, the next element is Hafnium with atomic 
           number 72 instead of Cesium of atomic number 58. Why?