PPT-C ritical metals and minerals:

An Australian perspective Dr Roger Skirrow Resources Division Geoscience Australia Four Mile uranium deposit SA Your mobile phone contains over 50 elements httpnewscnetcom230010413624492016html. METAL CHEMISTRY. N4. CHEMISTRY. N5. CHEMISTRY. After completing this topic you should be able to : . OBTAINING METALS. State ores are naturally occurring compounds of . metals.. State . the less reactive metals, including gold, silver and copper, are found uncombined in the Earth’s crust and the more reactive metals have to be extracted from their ores. Metals; ferrous, non ferrous, alloys. Ferrous metals . · Ferrous metals including: mild steel, high carbon steel, cast and wrought iron . · Availability of stock forms such as sheet, bar, tube and angle . Junior Science. 1. Recognising . chemical and physical change. Physical changes . are . reversible and does . not produce a new substance. Changes in state . (. melting, freezing, vaporization, condensation, sublimation. Elements in Group 1 are called . alkali metals. . lithium, sodium, potassium, rubidium, cesium, and francium . • Alkali metals are so named because they are metals that react with water to make alkaline solutions. . Jill Johnston, PhD. University of Southern California. SoCal Environmental Health Sciences Center. Based at USC Division of Environmental Health. Focus on the impact of pollution (traffic) effect health and disease in populations. Is dependent on crustal abundance. Elements and minerals are not equally represented or distributed in the earth’s crust. Countries and companies have mineral reserves. Known quantity that can be realistically recovered by mining. The elements in group 1, on the left of the periodic table, are called the. . alkali metals. .. These metals are all very . reactive which makes them different from other metals. lithium. sodium. potassium. . Conflict Minerals-Implications for the European Precious Metals Industry . 24 September 2017 | Vicenza, Italy. 1. Content. EPMF introduction. The . EU conflict minerals regulation in a nutshell. Challenges. Patel Sikora. What are Alkali Metals?. The alkali metals are located in Group 1 of the periodic table. They are a series of chemical elements which have similar trends and properties. Alkali metals are so called because when they react with water alkalis (strong bases that can neutralize acids) are formed.. All rocks are made up of 2 or more of these minerals. . Minerals are not rocks!. Silicon and oxygen are the most abundant elements in the crust and in minerals. Oxygen is the most abundant element in minerals. naturally. existing . chemical compounds.. 2)Minerals can be identified by their . physical properties. .. 3)What are the four characteristics of a mineral?. Naturally occurring. Crystal Structure/Chemical Substance. excludes synthetic minerals. inorganic. non living processes form them. chemically specific. has a unique proportion of elements. crystalline solid. atoms are arranged in specific 3-D patterns. Definition:. Strength. – metals that are . strong. are used to make car bodies, bike frames, ships, planes etc. . Malleability. . (mouldable). – This means that that they can be . shaped by hammering or rolling. Background Information!. The Earth’s crust is made of mostly rocks and soil.. The rocks are made of different combinations of . minerals.. Minerals . are made of . elements. . (. Remember an element .