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Two, Eight and Eighteen
Added:
The maximum number of electrons in all (1-7) shells (or periods I to VII) of the common Periodic Table of elements:
First K-shell: 2
Second L-shell: (2)+6= 8
Third M-shell: (2+6)+10= 8+10= 18
Fourth N-Shell: (2+6+10)+14= 18+14= 32
Fifth O-shell: .........................= 32+18= 50 (in common periodic table: max. reached at 32)
Sixth P-shell: .........................= 50+22= 72 (max. reached at about 18)
Seventh Q-shell: (2+6+10+14+18+22)+26= 72+26= 98 (max. reached at 2)
It is amazing to see the regularity and periodicity of these maximum numbers of electrons.
Would Mendeleev have expected anything like this when he came to his first idea's on 'arranging elements in a table' like he did and has got the Nobel Prize for Chemistry 1906 for.
Wiki User
∙ 14y ago
Wiki User
∙ 11y ago2n2 is the general formula where n is the number of shell. So the maximum number of electrons in 1st, 2nd and 3rd shell are 2, 8 and 18 respectively.
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What eleme has 2 electrons in the first shell and 8 in the second and 6 in the third?
What element has 2 electrons in the first shell and 8 in the second and 6 in the third
How many electrons can the second shell of an atom hold?
First Shell always has 2 electrons. Second shell onwards can have up to a maximum of 8 electrons.
What element has 2 electrons in the first shell 8 second shell and 6 in the third shell?
Sulphur.
How many electrons are in each of the first two shells if an atom contains eight electrons?
The first shell can have 2 electrons, the second shell has 8 electrons and the third shell has 8 electron also. No matter what, electron fill up the first shell and then move into the next shell and then the next one. To answer the question, the first shell would have 2 electron and then the second shell would have six.
How many electrons in the outer energy level of phosphorus?
the energy levels are as follows: first shell 2 second shell 8 third shell 5
What eleme has 2 electrons in the first shell and 8 in the second and 6 in the third?
What element has 2 electrons in the first shell and 8 in the second and 6 in the third
How many electrons can the second shell of an atom hold?
First Shell always has 2 electrons. Second shell onwards can have up to a maximum of 8 electrons.
What is the configuration of an atom with 31 electrons?
the first shell: 2 electrons The second shell: 8 electrons The third shell: 18 electrons The fourth shell: 3 electrons
How many electrons can go in the first second and third shell of an atom?
The first shell can hold a maximum of 2 electrons, the second shell can hold up to 8 while the third shell can also hold a maximum of 8.
You have 2 electrons in the first shell 8 in the second shell and 6 in he third shell?
Sulfur
I have two electrons in the first shell 8 in the second and 6 in the third shell?
It is sulphur.
What element is 2 electrons in the first shell and 8 in the second shell and 6 in the third shell?
sulphur
What element has 2 electrons in the first shell 8 second shell and 6 in the third shell?
Sulphur.
2 Electron in firsat shell 8 electrons in second shell and 6 electrons in third shell?
No, its two electrons in the first, 8 electrons in the 2nd and 3rd shell if its stable
Which element has 2 electrons in the first shell 8 in the second and 6 in the third shell?
Silicon.
What element ahs 2 electrons in the first shell 8 in the second shell 6 in the third shell?
Sulfur
What element has 2 electrons in the first shell 8 in the second and 6 in the third?
The answer is Sulphur
