In periods, the metallic character decreases when Most elements can be considered metals. The trend. 21 terms. Francium is extremely rare and is radioactive, with the longest half-life at 22 min, so there is no empirical evidence that francium is the … { a)Sr, b)Ag, c)Sb, d)Xe } Fewer valance electrons. Properties of Metals. The arrangement of the elements in the present Periodic Table is based on atomic A. mass B. number C. radius D. density 14. (b) (i) Most metallic – Na Elements aren't "more metallic" than others. 5 B. At standard temperature and pressure, lithium is a soft, silver-white, highly reactive metal. (AI, Foreign 2008) Answer: (a) In a period on moving from left to right, the atomic number increases, the number of shells remains the same, nuclear charge increases the force of attraction on electrons towards the nucleus. All Rights Reserved. (1) 1.3 (2) 2.7 (3) 3.4 (4) 4.0 9. Which element in Period 3 has the greatest metallic character? (ii) Most non-metallic element is ‘F’ because it can gain electrons easily due to smallest atomic size. For example, bronze and most alloys of copper, magnesium, aluminum, and titanium typically display a high level of metallicity. 1/11. Either they are metals, or semimetals, or they are nonmetals. 30 seconds . is magnesium. Metallic character increases form right to left across a period on the periodic table, and from top to bottom down a group. The alkali metals in group 1 are the most active metals, and cesium is the last element in the group for which we have experimental data. Na is bigger than Mg. (b) (i) The most metallic element is Na and most non-metallic element is Cl in out of these elements. The element X is placed on the Magnesium. Although the term metallic character is typically applied to pure elements, alloys may also display metallic character. The periodic table of metals and nonmetals can be broken down to give you a sense of each element’s characteristics. Which of the following is the most metallic element in period 3? On the left hand side of period 3 we find the elements sodium, magnesium and aluminium. (ii) Non-metallic element in period 3. Silicon. Fill in the blanks with the choices given in brackets : In Period 3, the most metallic element is ___________ (sodium / magnesium / aluminium). Which of the following is the most metallic element in period 3? The natural element with the highest metallic character is cesium, which is found directly above francium on the periodic table. In Period 3, sodium with 11 protons is the least electronegative element, and chlorine with 17 protons is the most electronegative element. The element in Period 3 that has the greatest metallic character is magnesium. Metallic character decreases along a period due to decrease in tendency to lose electrons. What are the release dates for The Wonder Pets - 2006 Save the Ladybug? 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