CK-12 Physical Science Concepts - For Middle School

2.51. Hydrogen and Alkali Metals http://www.ck12.org A:Each hydrogen atom has just one electron. When two hydrogen atoms bond to ...

http://www.ck12.org Chapter 2. Matter FIGURE 2.105 Francium has one of the largest, heaviest atoms of all elements. Its one vale ...

2.52. Alkaline Earth Metals http://www.ck12.org 2.52 Alkaline Earth Metals Identify alkaline Earth metals. List properties of a ...

http://www.ck12.org Chapter 2. Matter MEDIA Click image to the left for use the URL below. URL: http://www.ck12.org/flx/render/e ...

2.52. Alkaline Earth Metals http://www.ck12.org Examples of Alkaline Earth Metals For a better understanding of alkaline Earth m ...

http://www.ck12.org Chapter 2. Matter FIGURE 2.107 Vocabulary alkaline Earth metal: Metal in group 2 of the periodic table that ...

2.53. Transition Metals http://www.ck12.org 2.53 Transition Metals Identify transition metals. List properties of transition me ...

http://www.ck12.org Chapter 2. Matter FIGURE 2.108 shiny. The compounds that transition metals form with other elements are ofte ...

2.53. Transition Metals http://www.ck12.org and the alkaline Earth metals in group 2, the transition metals are much less reacti ...

http://www.ck12.org Chapter 2. Matter 2.54 Groups with Metalloids Identify elements in groups 13–16 of the periodic table. List ...

2.54 Groups with Metalloids http://www.ck12.org Contents FIGURE 2.110 electrons. You can learn more about specific metalloids by ...

http://www.ck12.org Chapter 2. Matter FIGURE 2.111 Boron is a very hard, black metalloid with a high melting point. In the miner ...

2.54. Groups with Metalloids http://www.ck12.org FIGURE 2.113 The most common form of the metalloid arsenic is gray and shiny. A ...

http://www.ck12.org Chapter 2. Matter Summary Groups 13–16 of the periodic table contain one or more metalloids, in addition to ...

2.55. Halogens http://www.ck12.org 2.55 Halogens Identify halogens. Describe physical and chemical properties of halogens. List ...

http://www.ck12.org Chapter 2. Matter FIGURE 2.115 Chemical Properties of Halogens The halogens are among the most reactive of a ...

2.55. Halogens http://www.ck12.org Physical Properties of Halogens The halogen group is quite diverse. It includes elements that ...

http://www.ck12.org Chapter 2. Matter TABLE2.11:(continued) Halogen Use Bromine is used to purify water in swimming pools and ho ...

2.55. Halogens http://www.ck12.org Describe the physical properties of halogens. Why is chlorine added to swimming pool water? ...

http://www.ck12.org Chapter 2. Matter 2.56 Noble Gases Identify the noble gases. List properties of noble gases. Explain the no ...