Science > Chemistry > Third Row Elements > Metallic Character of Third Row Elements

In this post, we shall study the trend im metallic character of 3rd row aspects.

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Metallic Character:

The tendency of an atom to lose electrons to develop positively charged ion is referred to as its metallic character or electropositive character. Typically steels display luster and also are great conductors of heat and also electrical power.

Non-Metallic Character:

The tendency of an atom to acquire electrons to form negatively charged ion is dubbed its non-metallic character or electronegative character.

Factors affecting metallic and non-metallic characters:


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As we relocate across the periodic table from left to right i.e. from sodium to argon in the third duration metallic character decreases and also non-metallic character boosts. Sodium, magnesium, aluminium are typical metals. Silsymbol is metalloid. (weakly non- metallic). Phosphorous, Sulphur, Chlorine are non-metals. Argon is an inert gas.

Sodium is the the majority of metallic aspect while chlorine is the most non-metallic facet.Both the extreme aspects sodium and chlorine are exceptionally reenergetic. Argon is neither electropositive nor electronegative.

Scientific Reasons:

As we move across the periodic table from left to the best i.e. from sodium to Argon in the third duration metallic character decreases and also non-metallic character increases.

As we relocate from left to right in the 3rd duration the atomic number goes on enhancing. Hence as we move from sodium to argon the nuclear charge increases and from left to right extra electron is added to the same i.e. 3rd orlittle bit. Due to boost in the nuclear charge the attractive pressure on electrons in outera lot of orlittle bit increases and thus the dimension of atom decreases.


As we relocate from left to appropriate in the third duration the ionization enthalpy increases. From left to best in the third-periodelectronegativity boosts i.e. the tendency of shedding electrons decreases and also tendency of acquiring electrons increases. As we relocate from left to ideal in the third-duration number of valence rises. Henceas we move across the periodic table from left to the best i.e. from sodium to Argon in the 3rd duration metallic character decreases and non-metallic character rises.

Sodium, Magnesium, Aluminium are typical metals.

Metallic and non-metallic characters of the facets depfinish on their atomic dimension, nuclear charge and ionization potential.Sodium, magnesium, aluminium have actually atomic numbers 11, 12, 13 respectively. They contain 1, 2, 3 valence electrons in their outera lot of shell.

Contrasted to various other aspects in the 3rd row their atomic sizes are larger. Similarly, the nuclear charges are also less. Due to this attrenergetic force on valence electrons is less.Contrasted to other elements in the 3rd row their ionization enthalpies are lower.Thus the tendency of these aspects is to shed their valence electrons.Hence sodium, magnesium, aluminium are typical steels.

Phosphorous, Sulphur, Chlorine are non-steels.


Metallic and also non-metallic characters of the aspects depfinish on their atomic dimension, nuclear charge and also ionization potential.Phosphorous, sulphur, chlorine have atomic numbers 15, 16, 17 respectively. They contain 5, 6, 7 valence electrons in their outermost shell.

Contrasted to various other aspects in the 3rd row their atomic sizes are smaller sized. Similarly, the nuclear charges are additionally more. Due to this attrenergetic pressure on valence electrons is more.Compared to various other facets in the 3rd row their ionization enthalpies are higher.Thus the tendency of these aspects is not to lose their valence electrons however to get electrons.Hence phosphorous, sulphur, chlorine are non-metals.

Argon is neither electropositive nor electronegative aspect.

Metallic and also non-metallic characters of the aspects depend on their atomic dimension, nuclear charge and also ionization potential.Argon has atomic number 18. It has 8 valence electrons in their outermany shell.Argon has actually completed octet and totally filled s and p orbitals thus it has actually the many stable electronic configuration in third-row facets which it will certainly not disturb by accepting or shedding the electron.

Compared to various other aspects in the 3rd row its atomic sizes are larger yet the effect of filled s and p orbitals is dominating.Compared to various other facets in the 3rd row its ionization enthalpy is the highest possible.Thus the tendency of Argon to lose or get valence electrons is nearly missing.Hence Argon is neither electropositive nor electronegative facet.

Sodium is the a lot of metallic element.


Metallic and also non-metallic characters of the elements depfinish on their atomic dimension, nuclear charge and ionization potential.Sodium has atomic numbers 11. It contains 1 valence electron in its outermost shell.

Compared to various other elements in the 3rd row its atomic size is bigger. Similarly, the nuclear charge is also less. Due to this attrenergetic pressure on valence electron is less.Contrasted to various other facets in the 3rd row its ionization enthalpy is the lowest.Therefore the tendency of Sodium is to lose its valence electron.Hence Sodium is the most metallic aspect.

Chlorine is the most non-metallic aspect.

Metallic and non-metallic characters of the elements depfinish on their atomic size, nuclear charge and ionization potential.Chlorine has actually atomic number 17. It includes 7 valence electrons in its outermost shell.

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Contrasted to various other elements in the 3rd row its atomic dimension is the smallest. Similarly, the nuclear charge is additionally more. Due to this attractive pressure on valence electrons is even more. Compared to various other elements in the third row its ionization enthalpy is the greatest. Therefore the tendency of Chlorine is not to lose its valence electrons however to get electrons. Hence Chlorine is the most non-metallic aspect.

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