C. copper. The elements in the periodic table known as the transition metals are much less reactive, and metals such as gold and platinum endorse the bottom of the list, exhibiting less in the way of chemical reaction with any ordinary reagents. Tantalum: Niobium: Dubnium: 2 3 1. The least reactive elements are those who have a full outermost valence shell ie they have 8 electrons in the outer shell so elements such as helium, neon, radon or the transition elements. In other words, the most reactive metal is presented at the top and the least reactive metal at the bottom, as shown in the reactivity series chart below. Since they have 8 electrons in the outer shell and because the … Image: Giphy. It gives a descriptive detail on metal reactions with the extraction of metals from ores and with acids and water. Thus they were discovered first, compared to the more reactive metals. This group consists (in order of atomic number) of Helium, Neon, Argon, Krypton, Xenon, and Radon. THIS SET IS OFTEN IN FOLDERS WITH... Metalloids - Assignment. 10 terms. The production of the hydroxide (alkali) can be tested by adding universal indicator (UI) to the reaction vessel - UI changes from green to … The reactivity of an element can be determined by looking at the electron configuration of the element.. Name the least reactive metal among the following: Fe, Zn, Al. Metalloids - Quiz (100%) 10 terms. Emrisina. The least reactive metal is platinum, followed by gold. Metals react differently with different substances. The most reactive is at the top, the least reactive at the bottom. Metal can have multiple oxidation states and tend to have intermediate reactivity. 2:44 500+ LIKES. Metals with low reactivity are called noble metals. So, they are inert in nature and are present in their pure form in nature. They do not react with other metals or … Gold is more reactive than platinum. The least reactive family of elements consists of the “noble gases.” (I’m not sure what’s noble about them, but the name has stuck.) iron. The most reactive is at the top, the least reactive at the bottom. Links Metals Revision Questions gcsescience.com The Periodic Table Index Reactivity Series Quiz gcsescience.com The next reactive series of metals are the alkaline earth metals such as magnesium and calcium that have two valence electrons. The more reactive metals formed stable compounds with other elements, whereas the less reactive metals stayed in their original state - as metals. Within this group, helium is the least reactive element, forming no stable compounds. The least reactive elements are the noble gases. Emrisina. D. lead. The higher the karat, the higher the ratio of gold to alloys. Silver: Strontium: Technetium: 3 1 2. Answer. Karat is a measure of the purity of gold. Rank the metals from most reactive (1) to least reactive (3). Become a member and unlock all Study Answers Try it … That is why potassium is most reactive since it belongs to Group 1 and it is placed lowest in the group among the given metals. According to HyperPhysics, alkali metals include potassium, sodium and cesium. B. silver. The most reactive metals on the periodic table are the alkali metals, which have a single valence electron. The least reactive metal among the following is: A. sodium. This is useful for extracting metals from their oxides. What metal is the least reactive? Rank the metals from most reactive (1) to least reactive (3). Silver or gold are noble metals and are present at the bottom of reactivity series. Rank the metals from most reactive (1) to least reactive (3) tantalum niobium dubnium 2 See answers MissPhiladelphia MissPhiladelphia As you go down the periodic table, the nuclear charge increases but so does the number of shielding electrons.
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