0
There is an equation for finding out the number of electrons in each shell:
Ne=2n2 and as known 1st shell is called k-shell, 2nd L-shell, 3rd M-shell, and so on, now put the value of each shell in the equation we get Ne(k)=1(1)2 this results in 2 so k-shell has 2 electrons, likewise put the value of each shell in the equation you will get the exact number of electrons in each shell..
Wiki User
∙ 13y ago
Wiki User
∙ 13y agoAm wondering this myself.... can't seem to find the answer so am assuming it's not known. The onyl thing I can think of is that they are spinning so fast and so close to the "nucleus" that there's no room for any others?..... any one else?
Wiki User
∙ 13y agoIt's all to do with spin and angular momenta, and the way quantum theory works. For any orbital state, there are 2 spin values ("up" and "down"). In that orbital state "l" (letter l) there are (2xl +1) possible orbital sub-states labelled by integers from -l to +l. The smallest "l" you can have is zero (just one state with no orbital momentum at all) and this is called the "K shell". For any orbital sub-state there are the 2 spin states. Since the K shell only has the single orbital state, the only possiblities for electrons are the 2 spin states.
Wiki User
∙ 10y agoThe question seems a bit convoluted because the 2s orbital electrons do not have to only be considred the valence shell. The valence shell pertains to whichever atomic orbital is currently the outermost of of the highest energy. It is a relative term and so the 2s orbital contains only electrons in the outer shell for the elements Li and Be.
Add your answer:
Earn +20 pts
What do alkali metals have in common with electron shells?
They all have 0NE electron in their outer shell: called s-electron. That's why they belong to group 1
How many extra valence electrons does helium need to become stable?
Helium has 2 valence electrons and has completely filled orbitals / shells and helium is stable.
How many electrons fill the first 3 shells before electrons move to the next shell?
It would have 2 electron shells because the first shell can only hold up to two electrons and the second shell will be responsible for the rest of them.
How many additional electrons does a hydrogen atom need to complete its outermost energy levels?
Hydrogen needs only 1 electron to complete its outer shell. the configuration of Hydrogen is 1s1 this indicates that it has only 1 electron in the shell S.and to complete the S shell H needs only one electron as the capacity of the S is 2.
Number of electrons on an s sublevel in the outermost electron shell of the group IA?
one electron
How many are of shells are in sodium?
The first electron shell of any element is the one s shell. Every element except hydrogen has 2 one s electrons.
What do alkali metals have in common with electron shells?
They all have 0NE electron in their outer shell: called s-electron. That's why they belong to group 1
How many electron shells does the beryllium atom have?
Two energy shells. Made up as 1s2, 2s2 Shells 1 & 2 each have only 's' orbital and each orbital has only two electrons in it. The outer shell '2' is more energetic. The electrons are paired and spin in opposite directions to each other.
What are the electron levels?
Electrons don't have levels. They have shells and orbitals. Each shell contains certain orbitals. For example, the first shell contains only the s orbital. The second contains the s and p orbital. The fourth shell has the s, p, and d orbitals.
How many extra valence electrons does helium need to become stable?
Helium has 2 valence electrons and has completely filled orbitals / shells and helium is stable.
Describe the presence of sub shells in a shell?
A sub shell is an area inside an atom's electron shell that contains a type of electron orbital. Each and every atom consists of a central nucleus of one or more positive protons and zero or more chargeless neutrons, with electrons traveling about it the electrons are on shells
How many electrons fill the first 3 shells before electrons move to the next shell?
It would have 2 electron shells because the first shell can only hold up to two electrons and the second shell will be responsible for the rest of them.
How are shells created?
shells are created with tortoise 's shell which it hides it self.
What is the maximum number of electrons that can occupy the 3rd electron shell?
3s^2 3p^6 3d^10 18 electron altogether in the third shell.
How many electrons are in first shell of sodium?
The first electron shell of any element is the one s shell. Every element except hydrogen has 2 one s electrons.
Electrons in second energy level of an atom?
If you want to learn how many electrons to accommodate in energy shells. Use the formula 2n2 where n stands for the no of shell. Like in second shell= 2(2)2=2x4=8. It means eight electrons can be accommodated. it is the most appropriate method to accommodate first 18 elements.
How many electrons would be expected in the outer most shell of an atom with an atomic number of 10?
Given what we know about electron structure, we would expect there to be 8 electrons in the outer shell of an atom with the atomic number of 10. And that's how many there are. Element 10 is neon, and like all noble or inert gases, it has a full outer shell.There are only two electron shells for all the elements up through element 10 (neon). The first shell will only accept 2 electrons. That's the s shell, and it's the outer shell (and the only shell) for helium (the lightest inert gas). The next 8 electrons will fill the second electron shell, which is the p shell. That means element 10 (the inert gas neon) will have a full s shell (2 electrons) and a full p shell (8 electrons).
