what is expected trend in the variation of non metallic character of the element from from left to right in a period
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what is expected trend in the variation of non metallic character of the element from from left to right in a period
Physical properties associated with metallic character include metallic luster, shiny appearance, high density, high thermal conductivity, and high electrical conductivity. Most metals are malleable and ductile and can be deformed without breaking. Although many metals are hard and dense, there is actually a wide range of values for these properties, even for elements that are considered highly metallic.
Metallic Character and Periodic Table Trends
There are trends in metallic character as you move across and down the periodic table. Metallic character decreases as you move across a period in the periodic tablefrom left to right. This occurs as atoms more readily accept electrons to fill a valence shell than lose them to remove the unfilled shell. Metallic character increases as you move down an element group in the periodic table. This is because electrons become easier to lose as the atomic radius increases, where there is less attraction between the nucleus and the valence electrons because of the increased distance between them.
Recognizing Elements With Metallic Character
You can use the periodic table to predict whether or not an element will display metallic character, even if you don't know anything about it. Here's what you need to know:
Metallic character is displayed by metals, which are all on the left-hand side of the periodic table. The exception is hydrogen, which is a nonmetal under ordinary conditions. Even hydrogen behaves as a metal when it's a liquid or solid, but you should consider it nonmetallic for most purposes.
Elements with metallic character occur in certain groups or columns of elements, including the alkali metals, alkaline earth metals, transition metals (including the lanthanide and actinides below the main body of the periodic table), and the basic metals. Other categories of metals include base metals, noble metals, ferrous metals, heavy metals, and precious metals. The metalloids display some metallic character, but this group of elements also has nonmetallic properties.
Examples of Elements With Metallic Character
Metals that display their character well include:
francium (element with highest metallic character)cesium (next highest level of metallic character)sodiumcoppersilverirongoldaluminum
Alloys and Metallic Character
Although the term is typically applied to pure elements, alloys may also display metallic character. For example, bronze and most alloys of copper, magnesium, aluminum, and titanium typically display a high level of metallicity. Some metallic alloys consist purely of metals, but most also contain metalloids and nonmetals, yet retain the properties of metals.
Physical properties associated with metallic character include metallic luster, shiny appearance, high density, high thermal conductivity, and high electrical conductivity. Most metals are malleable and ductile and can be deformed without breaking. Although many metals are hard and dense, there is actually a wide range of values for these properties, even for elements that are considered highly metallic.
Metallic Character and Periodic Table Trends
There are trends in metallic character as you move across and down the periodic table. Metallic character decreases as you move across a period in the periodic tablefrom left to right. This occurs as atoms more readily accept electrons to fill a valence shell than lose them to remove the unfilled shell. Metallic character increases as you move down an element group in the periodic table. This is because electrons become easier to lose as the atomic radius increases, where there is less attraction between the nucleus and the valence electrons because of the increased distance between them.
Recognizing Elements With Metallic Character
You can use the periodic table to predict whether or not an element will display metallic character, even if you don't know anything about it. Here's what you need to know:
Metallic character is displayed by metals, which are all on the left-hand side of the periodic table. The exception is hydrogen, which is a nonmetal under ordinary conditions. Even hydrogen behaves as a metal when it's a liquid or solid, but you should consider it nonmetallic for most purposes.
Elements with metallic character occur in certain groups or columns of elements, including the alkali metals, alkaline earth metals, transition metals (including the lanthanide and actinides below the main body of the periodic table), and the basic metals. Other categories of metals include base metals, noble metals, ferrous metals, heavy metals, and precious metals. The metalloids display some metallic character, but this group of elements also has nonmetallic properties.
Examples of Elements With Metallic Character
Metals that display their character well include:
francium (element with highest metallic character)cesium (next highest level of metallic character)sodiumcoppersilverirongoldaluminum
Alloys and Metallic Character
Although the term is typically applied to pure elements, alloys may also display metallic character. For example, bronze and most alloys of copper, magnesium, aluminum, and titanium typically display a high level of metallicity. Some metallic alloys consist purely of metals, but most also contain metalloids and nonmetals, yet retain the properties of metals.
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Mostly, non metallic character gets increased and metallic character get decreased when we move from left to right in periodic table.
Explanation:
Non metals are the elements which can gain electron which gets increased on moving across a period , because its nuclear charge gets increased and atomic size decreased. On moving down the group non metallic character start decreasing due to increase in atomic size.
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