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Well, either a high amount or a low amount. Take the alkali metals for example. They all have just one valence electron and they need to lose it to fulfill the octet rule. That is what makes them so reactive; they will combine with any element in order to lose that one electron. They all have a low ionization energy, meaning it takes a relatively small amount of energy to knock off that lone electron, whereas other elements have to lose more electrons.

This also applies to elements with a lot of valence shell electrons, such as fluorine which only needs one more electron to fulfill the octet rule. This is another element that will react with almost anything because it doesn't take much for it to "get what it wants".

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โˆ™ 2009-08-24 00:04:56
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Q: Why does having a low amount of electrons in the valence shell make an element reactive?
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Related questions

What makes an element more reactive?

The amount of valence electrons. More valence electrons leads to more reactivity.


How can you determine the number of valence electrons for an element?

By the amount of electrons it has, the number of electron fields, and what the element is.


What can the reactivity of elements be explained by in the electronic structure?

I believe that if the element has a low amount of valence electrons they are more reactive. For example, Lithium, sodium, potassium etc. are very reactive. But the noble gases aren't as reactive because they have more electrons. It depends on how "grabby" they are for electrons..


What are examples of a valence?

The amount of electrons in the outer shell of an element.


What element has the same amount of valence electrons that carbon has?

An example is silicon.


How many electrons make an element stable?

The amount of electrons needed to make an element stable is the amount of electrons needed in order to make a complete outer (valence) shell.


How can i look at the periodic table and tell how many valence electrons an element has?

The group of the element indicates the amount of valence electrons. For example, the alkali metals have one valence electron and is in group one whilst the halogens have seven valence electrons and are in group seven.


How do you know how much valence electron an element has?

The amount of valence electrons in an atom of an element is the amount of electrons placed at the outermost ring of the atom. http://www.electronics-microcontroller.com/electronics-articles-basic-Structure-of-the-Atom.htm


How many valence electrons does H have?

Hydrogen has 1 valence electron. The amount of valence electrons for any element can be identified by it's group number in the periodic table.


What major change occurs as you move from left to right across periodic table?

the atoms of the element are less reactive and smaller. they are smaller because of the larger amount of valence electrons compacting the atom.What_moves_left_to_right_on_the_periodic_table


Are valence electrons the same as bonding electrons?

No, they arent. Valence electrons are the amount of electrons the element has in its outermost shell. Electrons dont bond, they can either be shared or transferred. An ionic bond transfers electrons and a covalent bond shares electrons.


How many valence electrons do all nonmetals have?

There is no set amount of valence electrons for nonmetals. The amount of valence electrons a nonmetal has is determined by the number of electrons on the outer shell of the atom.


When you decrease the amount of atomic radius does the element become more reactive?

With metals, as atomic radius decreases, the element becomes less reactive. A smaller atom means its valence electrons are closer to the nucleus, and the nucleus (with its positive charge) holds them tighter. A metal atom with a large atomic radius will be more reactive, because its valence electrons are farther from the nucleus, and less subject to the nucleus' effective nuclear charge. For example, considering the elements sodium and cesium, cesium is the more reactive of the two, because cesium is a larger atom, and its valence electrons are farther away, and thus easier to lose. (review "ionization energy.")


What is the total number of valence electrons for C6H6?

30 valence electrons. Valence electrons are on the outer shell of a atom. To find valence electrons, subtract the amount of electrons the noble gas has before the element from the number of electrons the element actually has. Since the noble gas before carbon is Helium, you subtract 2 electrons from 6 electrons which gives you 4 valence electrons. Since there are 6 carbon atoms, multiply 4 by 6 to get 24. Do the same to the hydrogen atoms and add the valence electrons of the two molecules together and you should get 30 total valence electrons.


Does the amount of protons an element has affect chemical bonding?

Yes. The number of protons and the number of electrons are the same for a neutral atom. The number of electrons (or the valence electrons to be specific) determines the reactivity of the element.


What is the total amount of electrons and valence electrons in francium?

Francium has 87 electrons; one is the valence electron.


How many outer orbital electrons are found in an atom of radium?

including radium count to the left once for each element in that row. that will give you the amount of electrons your looking for, for any element. (Valence Electrons)


Why is'nt nitrogen reactive?

Nitrogen is reactive. But not very reactive because of the amount of electrons it has.


What happens as you move from left to right across the periodic table?

The atoms of the element are less reactive and smaller. they are smaller because of the larger amount of valence electrons compacting the atom. Also, there is an increase in ionization energy and electronegativity.


Does helium have the same amount of valence electrons as the others in its group?

No it does not, there are shells and orbitals that determines how reactive an atom is. Helium has 2 valence electrons, which fill up its entire shell, so it is like a noble gas. the other noble gasses have 8 valence electrons, which fill up their entire shell.


What is a property that does not depend on the amount of element?

The density, and valence of an element do not depend on the amount.


How can you tell valence electrons by looking at the periodic table?

You can tell the amount of valence electrons by looking at the periodic table by looking at what group it is in. This is found out by looking at the box of the element and going straight up until you hit a number. This is the group number and also the number of valence electrons. The exception is for numbers 13, 14, 15, and so on. For these, just take the one off the number and that is the number of valence electrons. So, an element in group 15 would have 5 valence electrons. Another exception is He and H; they are different because each only have one shell and are full with two valence electrons. So an example of an element is Calcium - it is in group 2 and has 2 valence electrons.


What happends to the valence electrons is they are moved from left to right in the periodic table?

it increases the amount of valence electrons.


How do you find the number of valence electrons?

Take the atomic number then subtract the amount of valence electrons. Example: Number of non valence (inner) electrons in Sulfur: 16 (atomic number) - 6 (valence electrons) = 10 (valence or inner electrons)


How do you find number of valence electrons?

Take the atomic number then subtract the amount of valence electrons. Example: Number of non valence (inner) electrons in Sulfur: 16 (atomic number) - 6 (valence electrons) = 10 (valence or inner electrons)