The more reactive elements will replace the less reactive elements in the reactivity series, but not the other way around. Knowledge of chemistry is endless, so to know more about various types of chemical reactions. The reactivity seriesalso called the activity seriesranks elements in order of their reactivity for certain types of reactions, including single replacement reactions. Therefore, nonmetals that gain electrons rapidly are more active than others. We determine the reactivity of nonmetals, upon their capability to gain electrons in the solution state to form negatively charged ions or anions. What determines the reactivity of nonmetals?Īns. Therefore, the more readily metal loses its electrons, the more active it is, and higher up it is in the reactivity series. We determine the reactivity of metals, upon their capability to lose electrons in the solution state to form positive ions or cations. What determines the reactivity of metals?Īns. Activity Series of Metals: The electrochemical, electromotive, or activity series of the elements is formed when the electrodes (metals and nonmetals) in contact with their ions are ordered on the basis of the values of their standard reduction potentials or standard oxidation potentials. Fluorine is the most active nonmetals and it displaces all other nonmetals in salt solutions. Which is the most active or reactive nonmetal?Īns. Due to its low reactivity, it found uses in the manufacture of laboratory equipment, electrodes, platinum resistance thermometers, dentistry equipment, and jewelry. The metals at the bottom are bad reducing argent and they dont give up electrons easily. Elements that are higher up on the list are more reactive than the lower ones on the list. It has remarkable resistance to corrosion, even at high temperatures, and is therefore considered a noble metal. How an activity series of metals is organized Arrange metals into a list were the best reducing argent is at the top. The activity series of metals is a list of metals in order of reactivity. Platinum is one of the least reactive metals and therefore lies at the bottom of the reactivity series. Which is the least active or reactive metal?Īns. The table below, explain the reactions of metals with oxygen (air), water, dilute acids, and other salt solutions, at various level of the reactivity series. ![]() Metals at the top of the reactivity series are difficult to obtain from their ores.The activity series facilitates the comparative study of the metals in terms of the degree of their reactivity.Metals at the top of the reactivity series have the ability to displace metals that are placed lower from their salt solutions.It is because, like metals, it too loses an electron and becomes a positively charged (H +) ion. Although a non-metal, hydrogen is included in the reactivity series of metals.An activity series is a phrase used to describe it on occasion. The ease, with which a metal in solution loses electrons and forms a positive ion, decreases down the series, i.e., from cesium to platinum. As a result, a metal reactivity series is a grouping of metals in decreasing reactivity order.Special Features of the Reactivity or Activity Series of Metals: The relative reactivity of metals can be determined using a number of. Among the most commonly known metals, the most active cesium is at the top and the least active platinum is at the bottom of the reactivity series. An activity series is a list of substances in order from most reactive to least reactive. The more readily metal loses its electrons, the more active it is, and the higher up it is in the reactivity series. The activity of a metal depends upon its capability to lose electrons in the solution state to form positive ions. For example, zinc being more active than copper replaces it with copper sulfate in the solution state to form zinc sulfate and free copper. ![]() In a displacement reaction, a metal higher up in the reactivity series displaces all other metals in a compound, which lies below it. It helps us to predict whether particular metal can displace another metal from a compound or not. A more sophisticated calculation involving electrode potentials is required to make accurate predictions in this area.Metal activity or reactivity series finds its utility in the study of displacement reactions. For example, calcium is quite reactive with water, whereas magnesium does not react with cold water but does displace hydrogen from steam. The boundary between the metals that react with water and those that don't is harder to spot. Those metals that can displace H + ions from acids are easily recognized by their position above H in the activity series. Less active metals like iron or zinc cannot displace hydrogen from water but do readily react with acids: Sodium is highly active and is able to displace hydrogen from water: It is important to distinguish between the displacement of hydrogen from an acid and hydrogen from water. However, silver cannot displace copper ions from solution.
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