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How can you find out an element in the representative groups number of valence electrons?
Wiki User
∙ 13y ago
The number of valence electrons goes from left to right on the Periodic Table, not including the D block or the transition metals. It literally goes 1,2,3,4,5,6,7,8.
Wiki User
∙ 13y ago
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Why are group A elements called Representative elements?
They follow a pattern for valence electrons.
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.
How many electrons are in the outer shell of the elements in the groups?
the number of valence electrons is directly proportional to the group number in which the element is forund in the periodic table. for example, chlorine is in Group 7 so it has 7 valence electrons.
What does the group number help tell you in columns?
Group number describes the number of valence electrons. It helps in estimating chemical properties of that element.For example-group-1 elements have 1 valence electronThe group number of an element is equal to the number of valence electrons. The number of valence electrons is responsible for the chemical properties. So the chemical properties of the element can be determined by the group number.
How is the periodic table used to determine the number of electrons available for bonding?
The number of the vertical column- or group- that the particular element is in indicates the number of valence electrons available for bonding. For example, Lithium has one valence electron, whereas oxygen has six.
The number of electrons in atoms determine in element's propertices?
the valence electrons cause the chemical reations. the valence electrons decide that element attract to which element.
Why are group A elements called Representative elements?
They follow a pattern for valence electrons.
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 can you use to ditermine the number of valence electrons of an element in the s block and p block?
For the group 1 and 2 elements, the group number is the number of valence electrons. For groups 13 - 18, subtract 10 from the group number to get the number of valence electrons.
How many electrons are in the outer shell of the elements in the groups?
the number of valence electrons is directly proportional to the group number in which the element is forund in the periodic table. for example, chlorine is in Group 7 so it has 7 valence electrons.
Why do you have groups on the periodic table of elements?
The groups on the periodic table directly correspond to the amount of valence electrons in the outer shell of the elements shown. For example in Group 8 (gases) they all have full valence electrons which equals 8 in the outershell. An element in group 1 only has 1 valence electrons like hydrogen or sodium.
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).
Which group of elements 7 valence electrons?
The groups of electrons with 7 valence electrons are groups 7 and 17 on the periodic table.
What is a respesentative element?
Any element that is in one of the representative elemenet groups is a representative element. A representative element group is any of the groups 1-2, 13-18, i.e. not a transition metal. So, a representative element is an element that isn't a transition metal.
What does the group number help tell you in columns?
Group number describes the number of valence electrons. It helps in estimating chemical properties of that element.For example-group-1 elements have 1 valence electronThe group number of an element is equal to the number of valence electrons. The number of valence electrons is responsible for the chemical properties. So the chemical properties of the element can be determined by the group number.
How can you determined the number of valance electrons by looking at the periodic table?
Elements are located on the periodic table based off of their atomic number, but the vertical columns they are in (groups) show how many valence electrons they have. If an element were in Group 3 of the periodic table, it would have 3 valence electrons, and so on. This doesn't apply to the Transition Metals, so one should skip straight to Group 14, where the elements all have 4 valence electrons. Group 15 has 5, Group 16, 6, etc. The one exception to this is Helium, which is in Group 18 but only has 2.
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.
