Classify each of the following elements according to the categories of elements
ID: 989070 • Letter: C
Question
Classify each of the following elements according to the categories of elements identified in equations Refer to Figure 11.1. Which of the following has the highest ionization energy? Refer Figure 11.2. Which of the following has the largest atomic radius? Compare your answers for questions 5 and 6. What correlation can be made? Proceeding from left to right across a period of the periodic table, the elements become (more, less) metallic. Proceeding from top to bottom in a group of the periodic table, the elements become (more, less) metallic. Consider the generic equation for the reaction of the halogens, X_2 and Y_2: X_2(g) + 2Y-(aq) rightarrow 2X -(aq) + Y_2(g) Is X_2 or Y_2 the more reactive halogen? Explain. Experimental Procedure, Part B.2. What commercially available compound is used to generate experiment? Experimental Procedure, Part B. The observation for the Presence of the elemental form of the vent other than water. Identify the solvent. Experimental Procedure, Part E.3. Identify the test used to observe the periodic trends in the of the alkaline-earth metal ions.Explanation / Answer
5.a) O [radius of O is smaller than C; valence electron of oxygen is closer to the nucleus and more firmly attached, so ionization potential of O is higher than C because more energy is needed to eliminate an electron from the valence shell of oxygen.]
b) P [More energy is needed to eliminate an electron from the valence shell of P because of its half filled 3p valence orbital.]
c) Mg [More energy is needed to eliminate an electron from the valence shell of Mg because of its full filled 3s valence orbital.]
d) Mg [radius of Mg is smaller than Ca; valence electron of Mg is closer to the nucleus and more firmly attached, so ionization potential of Mg is higher than Ca because more energy is needed to eliminate an electron from the valence shell of Mg.]
6.a) C b) P c) Mg d) Ca
If valence shell is not half filled or fulfilled then ionization potential of smaller atom will be higher.
7.a. less metallic. [Proceeding from left to right across a period of the periodic table, the elements become smaller in size. Lesser the radius of the atom harder it is to remove an electron from the valence shell and less metallic it is.]
b. more metallic. [Proceeding from top to bottom in a group of the periodic table, the elements become larger in size. Larger the radius of the atom easier it is to remove an electron from the valence shell and more metallic it is.]
8. According to the reaction, X2 is more reactive than Y2 because it can displace Y2 from its salt and X2 itself reduces to X-.