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How can you find out an element in the representative groups number of valence electrons?
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.
What else can I help you with?
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.
Why are group A elements called Representative elements?
They follow a pattern for valence electrons.
How does the periodic table indicate the numbers of valence electrons an element has?
The group number of an element on the periodic table corresponds to the number of valence electrons it has. For main group elements (groups 1, 2, 13-18), the ones digit of the group number gives the number of valence electrons. For transition metals and inner transition metals, the number of valence electrons can vary.
How can you use a periodic table to predict the number of valence electrons an element has without having to draw the Bohr diagram?
In general, except for the transition elements, the group number will tell you the number of valence electrons. For example, Na is in group 1 and has 1 valence electron. Cl is in group 7 and has 7 valence electrons.
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.
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.
Why are group A elements called Representative elements?
They follow a pattern for valence electrons.
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 does the periodic table indicate the numbers of valence electrons an element has?
The group number of an element on the periodic table corresponds to the number of valence electrons it has. For main group elements (groups 1, 2, 13-18), the ones digit of the group number gives the number of valence electrons. For transition metals and inner transition metals, the number of valence electrons can vary.
How do you determine the number of valence electrons if you know the group no of elements?
valence electrons are electrons at the outermost shell as we all know, group in PE can be determined by looking at the valence electron thus if it is in group 1..then the valence electron is 1
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).
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.
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.
How can you use a periodic table to predict the number of valence electrons an element has without having to draw the Bohr diagram?
In general, except for the transition elements, the group number will tell you the number of valence electrons. For example, Na is in group 1 and has 1 valence electron. Cl is in group 7 and has 7 valence electrons.
Which group of elements 7 valence electrons?
The groups of electrons with 7 valence electrons are groups 7 and 17 on the periodic table.
