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How many electrons are contained in completed outer shells for all periods above period one?
Wiki User
∙ 12y ago
eight
Wiki User
∙ 12y ago
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What is the relationship between group and period?
Groups are the number of outer shell electrons in the elements and periods are the number of outer shells in the elements. eg. group 4, period 3 is Silicon which means that it has 3 shells where the electrons are stored and in the last shell it has 4 electrons
How many electrons are in a completed valence shell of most second period atoms when they combine with other atoms to become molecules?
8
Is the trend across a period similar or different for periods 2 3 4 and 5?
Similar for they have the same number of electrons in the last shell
What is the difference between a period and a group on the periodic table?
Periods on the periodic table go across and are based on the number of unexcited electrons increasing as you read across. Groups on the periodic table are read down the table and share the same number of valence electrons.
Why does the number of elements in successive periods on the periodic table increase by the progression 2 8 18 32?
As we go down the periodic table the number of electron shells goes on increasing by 1 and the periods are numbered according to the number of shells present in the atom of elements in that period. The maximum number of electrons in a shell is given by the formula, e=2n2 (where, e-maximum no. of electrons; n-the nth shell counted from the nucleus). So, the 1st shell has maximum 2, the 2nd 8, 3rd 18 and so on. Every period starts with a new shell and as we go across the periods from left to right one by one electron goes on adding to the same shell. Thus the maximum no. of electrons for a shell is present in the last atom of that period and no. of elements in a period is equal to the maximum no. of electrons for that period. So, the number of elements in successive periods goes like 2, 8, 18, 32 and so on.
How many electrons are contained in complete outer shells for all periods above period 1?
8
What separates elements into different periods?
The periods on the periodic table separate the elements according to which shell their valence electrons fall into. So, elements located in the third period will have the sum of all electrons contained in that period. For example: P has an electron configuration of 1s2, 2s2, 2p6, 3s2, 3p3 ......................sooo, add up all electrons from the third shell (3s2 & 3p3) to get the total number of valence electrons of the element.
How are periods in the periodic table similar?
The elements in a given period have the same number of core electrons.
Are periods valence electrons or electron shell?
The period tells you the valence ELECTRON SHELL (energy level). The group tells you the number of valence electrons.
What information do the periods number give you?
The periods in the periodic table tell you the energy level where the last electrons are being added. So, in period 1, the outermost electrons are in the first energy level or shell. In the 3rd period, the outermost electrons reside the the 3rd energy level, and so on.
Why do valence electrons end at eight?
Not necessarily, the number of electrons depend on the period in which the element is contained. For instance the first period ends at 2, second and third at 8, fourth and fifth at 18, sixth and seventh at 32.
When you get periods after taking modus-10 tablets?
i completed 10 in 5 days,4 days ago but still i didn't get my period
What is the relationship between group and period?
Groups are the number of outer shell electrons in the elements and periods are the number of outer shells in the elements. eg. group 4, period 3 is Silicon which means that it has 3 shells where the electrons are stored and in the last shell it has 4 electrons
What are the geologic periods named from?
Most geologic periods are named for the location where rock formations were first found that contained fossils from that period, some others (e.g. Carboniferous) were named for materials associated with the fossils.
Are you supposed to put periods on the outside or insde of peranthises?
Periods should typically go on the outside of parentheses. However, if the entire sentence is contained within the parentheses, then the period should go inside.
What is the number of electrons in the last orbit of any atom?
It depends on what level or period the atom is. Consult the periodic table, and you will see that period 1 has two electrons, periods 2 and 3 have 8, periods 4 and 5 have 18, and 6 and 7 have 32. Please see the related link below for more information.
How many electrons are in a completed valence shell of most second period atoms when they combine with other atoms to become molecules?
8
