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Groups are organized by the number of valence electrons that are found in their outer electron?
Wiki User
∙ 14y ago
shell
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∙ 14y ago
Wiki User
∙ 14y agovalence
Wiki User
∙ 15y agothe group number (1-8/0) is the number of valence/outer electrons in an atom of that element, except helium in group 8(or 0, whatever you call it), which has 2 outer electrons. http://en.wikipedia.org/wiki/Valence_electron
Wiki User
∙ 9y agoThe elements are arranged in order of increasing atomic number. The number of electrons in outer shell are given as
group1 -1
group2- 2
group13 -3
group 14 -4
group 15 -5
group16 -6
group17 -7
group18 -8
Wiki User
∙ 12y agoChemical properties
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How many valence electrons does lithium have?
Lithium has only one valence electron. A valence electron is an unpaired electron available for bonding with other elements. This makes lithium is a highly reactive element that can bond rapidly and often violently with any element having four to seven valence electrons (or with hydrogen).
When moving down a group ( family) in the periodic table the number of valence electrons?
When moving down a group, the number of valence electrons do not change. This similarity yields the elements in the same groups to have same chemical properties. For example, elements in group 17 obtain one electron to stabilize as -1 ion.In a group, all the elements have a same number of valence electrons. So their chemical properties are equal. But the physical properties vary.Valence electrons are the electrons in outermost shell.The valence electrons remain same in a group. For example-Group-1 elements have 1 valence electron.
How many additional valence electrons does fluorine need to have a full valence?
I believe you are talking about fluorine. If you are, F needs one more electron to gain a full shell.If you go to WikiAnswers for this information, that is counterproductive, because there is a much better way to do it. Look at the periodic table. Groups IA through VIIIA tell you what you need to know. IA has one valence electron, IIA has two valence electrons etc. Fluorine is in group VIIA and therefore has seven valence electrons. All atoms want eight, and thus fluorine is in need of one more.
What is the element in period 3 with 6 valence electrons?
Selenium. As you go across the groups, not counting the transition metals, a valence electron is added.
What is the valence electron for group 3?
The number of valence electrons in groups 3 through 7 is the same as the group number, and for group 12 the number of valence electrons is 2. For groups 8 through 11, the number of valence electrons must be determined individually from individual electronic configurations.
How do you find the valence electron for groups one and two?
Group one has one valence electron, and group two has two valence electrons
What is the rule on finding valence electrons for groups 13-18?
The number of Valence electrons in the groups 3 to 12 is variable, and depends on the element that it is being bonded with.For example:If Iron (Fe) is going to form a compound with Sodium (Na), the Fe will act as though it has 7 valence electrons (i.e. it is willing two accept the one Na Valence electron).
How many electron groups are in of2?
10 because there are 20 Valence Electrons that are pairing up.
How do the electron configurations of the transition metals differ from those of the metals in groups 1 and 2?
The elements in groups 1A and 2A have valence electrons in s-orbitals, while the elements in groups 3A-8A have valence electrons in p-orbitals.
How many valence electrons do the elements of alkali metals have?
Valence electrons are the electrons present in the outermost shell of an atom.You can easily determine the number of valence electrons an atom can have by looking at its Group in the periodic table.For example, atoms in Groups 1 and 2 have 1 and 2 valence electrons, respectively.Atoms in Groups 13 and 18 have 3 and 8 valence electrons, respectively.
How do you find the number of valence elections?
To find the number of valence electrons for an atom, you need to look at its electron configuration. The valence electrons are the electrons in the outermost energy level of an atom. You can determine the number of valence electrons by looking at the electron configuration or the periodic table. For main group elements (Groups 1, 2, 13-18), the number of valence electrons is given by the group number. For example, group 1 elements have 1 valence electron, group 2 have 2 valence electrons, and so on.
What are the valence electron of an atom?
The valence electrons are found on the valence shell, the outermost shell of an atom. By using the periodic table and the group numbers, one can find the number of valence electrons for elements in groups (vertical columns) 1-2 and 13-18. For the 1st 2 groups (1 and 2), the group number tells the number of valence electrons for elements which belong in that group Elements in the 1st group have 1 valence electron and elements in the 2nd group have 2 valence electrons. For groups 13-18, refer to the tens' value (the teen value that is not the "1" in these cases). Elements in group 13 have 3 valence electrons, elements in group 14 have 4 and so on to the the final group, 18, where electrons have a full octet of valence electrons.
What is one property that is specific to each of the groups on the periodic table?
The number of valence electrons is unique to each group. For example, group 1 has 1 valence electron, and group 3 has 3 valence electrons, and group 7 has 7 valence electrons. This is unique for each group as no other group has that same number of valence electrons.
How many valence electrons does lithium have?
Lithium has only one valence electron. A valence electron is an unpaired electron available for bonding with other elements. This makes lithium is a highly reactive element that can bond rapidly and often violently with any element having four to seven valence electrons (or with hydrogen).
When moving down a group ( family) in the periodic table the number of valence electrons?
When moving down a group, the number of valence electrons do not change. This similarity yields the elements in the same groups to have same chemical properties. For example, elements in group 17 obtain one electron to stabilize as -1 ion.In a group, all the elements have a same number of valence electrons. So their chemical properties are equal. But the physical properties vary.Valence electrons are the electrons in outermost shell.The valence electrons remain same in a group. For example-Group-1 elements have 1 valence electron.
The valency of oxygen is?
two , two valence electron Oxygen has two valence electrons since it must gain two in order to obtain 8 electrons in its outermost energy level. However, the number of valence electrons is six--not two. The valence and valence electrons are only the same for metals in Groups 1, 2, and 3.
Why do elements in a group share similar properties?
all the members of a group of element have similar chemical properties because they all have the same number of electrons in their valence bands.The periodic table of elements is arranged this way,that is,by electron structure. The valence columns are the groups of elements , and is their electron structure that places them where they are.
