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2013-01-28 01:19:59
2013-01-28 01:19:59

each period (row) on a periodic table represents the outermost ring of electrons (valence electrons). Well if you count across a period you will get the number of valence electron. For example, if you count across a period for Oxygen (O atomic number:8) you will count 6 which is the amount of valence electrons in oxygen

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Related Questions


Valence electrons are placed in the outermost shell of electrons.


There are 2 valence electrons in an atom of magnesium. There are 5 valence electrons that are in an atom of phosphorus. There are 4 valence electrons that are in a silicon atom.


write the complete electronic configuration of the atom following Aufbau principle


Valence electrons are on the external shell.


To find the no. of valence electrons in an atom, write its electronic configuration such that all the shells are completely filled. The last shell will be incomplete i.e., it will have less than 8 electrons. The no. of electrons in that shell is the no. of valence electrons. For example:- Sodium has a configuration of 2,8,1. It has 1 valence electrons. Chlorine has a configuration of 2,8,7. It has 7 valence electrons.


A nitrogen atom has 5 valence electrons.


the goal of valence electrons is to provide stability to their respective atom.


The valence electrons occur in what part of the atom?


The valence electrons are the electrons in the outer shell of an atom.


there are five valence electrons in an atom of phosphorus


To find out how many valence electron an atom has, find the group that the element is in on the periodic table.


This is a chemical element. You can find the how many electron in a single atom by using a periodic table.


an electron of an atom, located in the outermost shell (valence shell) of the atom, that can be transferred to or shared with another atom.


nitrogen has 5 valence electrons. carbon has 4 valence electrons.


This is a chemical element. You can find the how many electron in a single atom by using a periodic table.


A calcium atom has two valence electrons.


The most valence electrons an atom can contain is eight.


A barium atom has two valence electrons.


The electrons farthest away from the nucleus are the valence electrons of an atom.


yes, an oxygen atom have the same number of valence electrons as a selenium atom.


You can determine how many valence electrons an atom has by what family the element of the atom is in. For instance, if the element is in family 8A, the number of valence electrons will be 8. Or, if the element is in family 2A, the number of valence electrons for the atom will be 2. So, whatever number family the atom is in, the number of valence electrons equals that.


using the periodic table, count across a period (row) to find the number of valence electrons


Valence electrons can determine the reactivity of the atom. An atom with a full shell of valence electrons, like neon, will be less reactive than an atom with only one electron in its valence shell, like sodium.


There are 2 valence electrons in each Barium (Ba) atom.


valence electrons are the electrons located in the outer shell of an atom which are available for reaction



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