Electronic configuration of sodium : 2, 8, 1 It uses these reactions to explore the trend in reactivity in Group 1. Reactivity of some metals are given in descending order : SO2 + H2O → Sulphurous acid (H2SO3), The reaction of carbon with oxygen—When carbon is burnt in air, it forms carbon dioxide. Zinc reacts with copper sulphate to form zinc sulphate and copper. Number of electrons in outermost orbit = 1 When iron articles like the gate, grill, fencing, etc. Advertisement: Also See : CBSE Class 10 Science Syllabus 2019-2020 Session Element: Is a substance that can’t be broken into more simpler substances. Iodine is non-metal which is lustrous having a shining surface. Thus, non¬metals are also known as Electronegative Elements. Displacement reactions are explained on the basis of the activity series of metals. Alkali Metal Hydrides and Water. Free. The chemical reactivity of metals varies widely. 3.3K views. Non-metals: The reactions of non-metals with bases are complex. Metals Most metals react with water to produce a metal hydroxide or metal oxide and hydrogen gas. Created: Nov 17, 2011. Reaction with water: Non-metals do not react with water but are usually very reactive in air, which is why some of them are stored in water. Hydrogen gives hydrogen chloride and phosphorous gives phosphorous trichloride when reacting with chlorine. Thus, metals are known as Electropositive Elements. MgO + H2O → Mg(OH)2 (Magnesium Hydroxide). This turns HgS (mercury sulphide or cinnabar) into HgO (mercury oxide) by liberation of sulphur dioxide. Cover each metal with water; Observe the reactions of the metals with water. Metals found at the bottom of reactivity series are least reactive and they are often found in nature in free-state; such as gold, silver, copper, etc. by painting and applying grease on the articles. In this, impure metal is used as anode and pure metal is used as a cathode. Thus, in order to obtain stable configuration, sodium transfers one electron to chlorine. The melting point of alloys is lower than the constituent metals. Elements are classified into different categories: 1. Reaction of magnesium metal with water: Magnesium metal reacts with water slowly and forms magnesium hydroxide and hydrogen gas. They react with water to form alkalis such as sodium hydroxide and potassium hydroxide. CO2 + H2O → Carbonic acid (H2CO3), The reaction of Metals and Non-metals with water: Generally, metals form respective hydroxides when they react with water. Sulphur gives sulphur dioxide when reacting with oxygen. Info. Powerpoint which leads students through discovering the reaction of metal with water. With late metals, OA of water is thermodynamically rather difficult and many of the known examples display reversibility. Do non-metals also have physical properties similar to that of metals? Oxides of metals so obtained are converted into metals by the process of reduction. (i) Extraction of Metals of Least Reactivity: Mercury and copper, which belong to the least reactivity series, are often found in the form of their sulphide ores. Metals: Physical properties of metals, chemical properties of metals and non-metal oxide. The physical properties are insufficient to identify if a substance is metal or a nonmetal and so there is need to test chemical properties of metal and non-metal . In this reaction, a lot of heat is produced. SCIENCE AND TECHNOLOGY MODULE - 6 Metals and Non-metals Natural Resources 198 Notes Fig. Ionic compounds are generally insoluble in organic solvents; like kerosene, petrol, etc. Some more examples are discussed below. Aluminium oxide gives aluminium chloride along with water when it reacts with hydrochloric acid. Sodium forms sodium ion because of the loss of one electron. Thus, ionic bond is formed between sodium and chlorine. The solution of Magnesium oxide turns red litmus paper blue. As a result, it catches fire if left in open. Reaction of aluminium metal with water: Reaction of aluminium metal with cold water is too slow to come into … Created: Nov 17, 2011. Phosphorus is a very reactive non-metal element.If phosphorus is kept open in air,it react with the oxygen of air and catches fire.So,in order to protect phosphorus from atmospheric air,it is stored in a bottle containing water… When electric current is passed through the solution, pure metal from anode moves towards cathode and is deposited over it. Reaction of Sodium metal with Water: Sodium metal forms sodium hydroxide and liberates hydrogen gas along with lot of heat when reacting with water. Bring a burning matchstick near the mouth of the test tube. Some non-metals are in solid state, a few others are in liquid state and the rest are in gaseous state at room temperature. Chemical properties of Non-metals Metals are the elements that conduct heat and electricity and are malleable and ductile. It is in the form of bubbles which stick on the metal surface. Non-metals: Non-metals like carbon, sulphur, and phosphorus react with oxygen to form non-metallic oxides. When steam is passed over magnesium metal, magnesium oxide and hydrogen gas are formed. Name a reducing agent that may be used to obtain manganese from manganese dioxide. acid → Metal salt + Hydrogen. Videos of each of the Alkali Metals reacting with water Lithium Lithium is the lightest of the alkali metals and very reactive. �Noble Gases Non-metals have no reaction with water. Ferrous alloys: An alloy in which iron (Fe) is present. More difficult thereaction metal oxides chemical properties of ores the given CBSE Class 10 Science Notes Chapter 3 and! From the process of roasting and calcination chlorine → non-metal chloride hydrogen gives hydrogen gas along hydrogen... 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