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Standard Chemistry Chapter 11 – Figure 11.2 The following are the writings from the class on Figure 11.2 on page 221. Read each of them and give them a score using the Rubric we use for the e-Portfolio. The scores should be 4, 3, 2, 1, or 0. Recall the prompt: Explain what the figure is trying to show and describe what is really happening. Writing Score I think that it literally looks like 5 rows and 8 columns of dots of different colors. I think it atomically looks like 20132211 the periodic table of elements. It looks like the relative radii for the representative elements. Figure 11.2 depicts groups IA through the nobel gases, skipping the transition and inner-transition metals. The elements, shown as dots, and each colored different colors, shrink as the groups near the noble gases. In other words, the noble gases are the smallest dots. This is from left to right. If the picture is looked at from top to bottom, the dots grow larger as they near the bottom. The radii of the elements changes sizes depending on the area of the periodic table they are in. The figure shows the relative atomic radii for these representative elements. It shows that the atomic radius decreases across a period and increases down a group in the periodic table. Hydrogen is an exception because it is much smaller and a different color than all of the other ones in its group. ATOMIC RADIUS DECREASES ACROSS A PERIOD AND INCREASES DOWN A GROUP ON THE PERIODIC TABLE. The picture is stating that the atomic radius of elements decreaes across the periodic table going to the left and increases in radius as the table goes down. IN THIS FIGURE 11.2 THE FIRST THING I NOTICED IS THE DIFFERNET SIZES AND SHAPES OF THE MOLECULES. Relative atomic radii for the representative elements. Atomic radius decreases across a period and increases down a group in the periodic table. The radii of the representative elements are shown. The radii of the atoms tend to increase from left to right across a period. The increase in radius down a group can be understood if we consider the electron structure of the atoms. Each step down a group, an additional energy level is added to the atom. The atoms get bigger as electrons are placed i these new higher energy levels. The average distance fro the nucleus to the outside edge of the atom must increase as each new energy level is added. David A. Young page 1 05/08/2017 34443423 23343332 21142111 x2242x11 10121100 44344xx4 Standard Chemistry Chapter 11 – Figure 11.2 In this photo, i see eight columns and six rows. Each contains different colors and sizes. Each of the balls seem to represent a different elements. The different elements are metals and nonmetals. They also could be metalloids. For the most part, elements are classified as metals. I think that the metals in this figure are found on the left side. These are all of my thoughts on this figure. This picute on page 211, shows a picture of the periodic table, but in a different way. This shows that as you go across on the periodic table the radius of the atom increases. Also looking down you notice that the radius tends to increase as well. I SEE A BUNCH OF COLORFUL CIRCLES. THESE ARE REPRESENTIG THE ELEMENTS GROUPS 1,2, 13, 14, 15, 16, 17 AND 18. In Figure 11.2, it shows the relative atomic radii for the elements listed. It represents how the radius decreases across a period, an increases down a group on the periodic table. ATOMIC RADIUS DECREASES ACROSS A PERIOD AND INCREASES DOWN A GROUP IN THE PERIODIC 222424x0 As the spheres (representing the atoms) progress down the groups on the representative elements, they increase in size. On the other hand as they progress across the periods, they decrease in size. In figure 11.2 the round objects that repersent different elements on the periodic table get smaller as they go to te right an up. This symbolizes that the radius of the atom gets smaller as you go up and to the right. IN EACH COLUMN THEY ARE SMALL THEN THEY EXPAND AND IN EACH ROW THEY ARE HUGE THEN THEY GET SMALLER. IN EACH COLUMN IS A DIFFERENT COLOR AND EACH ROW IS ALSO A DIFFERENT VARIETIES OF COLORS. ATOMIC RADIUS DECREASES ACROSS A PERIOD AND INCREASES DOWN A GROUP IN THE PERIOD TABLE The elements at the beginning of the periodic table are lage while the further down the table to the right, the atoms get smaller. Each column is a different collor and each period starts with a Large atom, and gets smaller as you keep going right in the period. The smallest atom is found also at the top and procedes to get larger as you go down the column. Each element has it's own individual color and size and dosen't share nother color or 122422x2 David A. Young page 2 05/08/2017 221423x1 011211x0 222422x1 211412x1 222412x1 111413x1 121421x1 24444xx2 Standard Chemistry Chapter 11 – Figure 11.2 size with it. The largest atoms can be found in the IA column except for the element H which i one of the smallest. The smallest atoms can be found in the Noble gases column. Also, when the atoms gett smaller there are more protons and electrons found it. So the bigger atoms have less protons and electrons in it then the smaller ones. David A. Young page 3 05/08/2017