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The higher the electronegativity of an element, the more reactive it is.

Electronegativity is determined by the atomic number of an element, and the distance from the nucleus of the outer electron shell. The further from the nucleus an outer electron is, the easier it is to break its attraction to the atomic nucleus, and thus, the greater the element's propensity for forming molecular bonds.

This answer is faulty since elements like Cesium are incredibly reactive, but have very low electronegativity and very low ionization energy, the energy to remove electrons. Because of that, elements at the top right and bottom left of the Periodic Table are both very reactive.

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βˆ™ 12y ago
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βˆ™ 7mo ago

Chemical reactivity of an element depends on its electron configuration, specifically the number of valence electrons an element has. Elements with a full valence shell tend to be less reactive. Elements with incomplete valence shells are more likely to bond with other elements to achieve a stable configuration.

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βˆ™ 11y ago

The chemical reactivity of an element is determined mainly by two things: Its electron affinity, and its ionization energy.

An element with high electron affinity is most likely to attract more electrons, making that element especially reactive and eager to bond with other compatible atoms.

An element with high ionization energy is also very reactive and eager to bond with other elements, especially those of groups 1 & 2.

It should also be noted that elements with very lowelectron affinity and ionization energy are also very reactive, especially with elements of groups 16 & 17.

The noble gases have neither an electron affinity or ionization energy, making them the most stable and nonreactive elements on the periodic table.

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βˆ™ 13y ago

The atomic number and the Atomic Mass determines the atom.

More importantly, the number of electrons determines the bonding characteristics of an atom.

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βˆ™ 14y ago

Electrons

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βˆ™ 13y ago

Valence electrons

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Q: What determines the chemical reactivity or an element?
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The number of electrons determines what of an element?

The number of electrons in an element determines its chemical properties and behavior. Specifically, it influences how an element will bond with other elements to form compounds and determines its reactivity.


What do Valence Electrons determine?

Valence electrons determine the reactivity and chemical behavior of an element. Elements with the same number of valence electrons exhibit similar properties and tend to form similar types of chemical bonds.


Why valency of an element is considered very important?

The valency of an element represents its ability to combine with other elements to form chemical compounds. It determines how many bonds an element can form and helps predict its reactivity and chemical behavior. Understanding valency is crucial for predicting how elements interact in chemical reactions and forming stable compounds.


The number of valence shells are responsible for the makeup of the chemical properties of elements.?

Yes, the number of valence shells determines an element's chemical properties as it affects the element's reactivity and ability to form chemical bonds with other elements. Elements with the same number of valence shells often exhibit similar chemical behavior.


The ease and speed in which an element combines or reacts with other substances is called?

The ease and speed in which an element combines or reacts with other substances is called reactivity. Reactivity is a measure of how readily an element undergoes a chemical reaction.

Related questions

Which subatomic particle determines the activity of the element?

In the chemical reactivity of atoms electrons are involved.


The number of electrons determines what of an element?

The number of electrons in an element determines its chemical properties and behavior. Specifically, it influences how an element will bond with other elements to form compounds and determines its reactivity.


Why is reactivity not a physical property?

Reactivity is not a physical property because it's a characteristic of a chemical element or compound and is involved in chemical process.


Why is reactivity not a property?

Reactivity is not a physical property because it's a characteristic of a chemical element or compound and is involved in chemical process.


Which subatomic particle determines reactivity?

Electrons are the subatomic particles that determine the reactivity of an element. The number of electrons in the outermost shell of an atom, known as valence electrons, determines how likely an atom is to form chemical bonds with other atoms.


What do Valence Electrons determine?

Valence electrons determine the reactivity and chemical behavior of an element. Elements with the same number of valence electrons exhibit similar properties and tend to form similar types of chemical bonds.


Why valency of an element is considered very important?

The valency of an element represents its ability to combine with other elements to form chemical compounds. It determines how many bonds an element can form and helps predict its reactivity and chemical behavior. Understanding valency is crucial for predicting how elements interact in chemical reactions and forming stable compounds.


What is a property that determines how a substance can be converted to another substance?

This property is called chemical reactivity.


Why is reactivity not a phyical property?

A physical change doesn't involve chemical reactions, change of the molecule structure.The chemical reactivity is about the ability of an element or compound to realize chemical reactions.


The number of valence shells are responsible for the makeup of the chemical properties of elements.?

Yes, the number of valence shells determines an element's chemical properties as it affects the element's reactivity and ability to form chemical bonds with other elements. Elements with the same number of valence shells often exhibit similar chemical behavior.


How do you spell magnesium?

That is the correct spelling of "magnesium" -- a chemical element known for its reactivity.


How easily an element reacts with other elements is a measure of its what?

Measure of its chemical reactivity.