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Answered 2009-08-24 00:04:56

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


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..


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


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



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.


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.


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


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.


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.")


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.


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.


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.


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.


Francium has 87 electrons; one is the valence electron.


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)


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.


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.


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


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


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.


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



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)


All elements in the same group have the same number of valence electrons.



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