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Was it Pauli? I'm not positive.

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Q: Who said atomic orbital can hold no more than two electrons?
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Why 2 electrons are present in s orbital?

It is not the orbital that holds more electrons. All orbitals can hold a maximum of 2 electrons.However, the p-subshell can hold more electrons than the s-subshell. This is because the s-subshell is only made of 1 orbital, and 1 x 2 = 2, therefore it can only hold 2 electrons. The p-subshell is made of 3 orbitals, and 3 x 2 = 6, so it can hold a maximum of 6 electrons.So, a p-subshell can hold more electrons than an s-subshell because it is made up of more orbitals. It is not the orbitals that hold more electrons.


Why all atom have 2 electron in first shell not more or less?

Actually, there is only one electron in a hydrogen atom, which has the atomic number 1. The existance of exactly two electrons in the innermost shell can be described by Shrodinger's Wave Equation. According to the Wave Equation, there is only one atomic orbital existing in the principal quantum number 1 energy level which is also known as 1s. Any atomic orbital can hold 2 electrons at most and it is the reason that every atom other than hydrogen have exactly 2 electrons in their innermost energy level.


An electron in a 3s orbital penetrates into the region occupied by core electrons more than electrons in a 3p orbital?

True


Do atom orbitals contain thousands of electrons or just a few electron?

If you look at a periodic chart, you will see that each element has a number. That number gives the number of protons and electrons that each element contains. There are limits to the number of electrons that any orbital can contain. The orbitals are labeled: s, p, d, f, g, h, i, k. The first two atoms in the periodic table, Hydrogen and Helium, only have an s orbital. The s orbital holds two electrons. When the s orbital is full, as with Helium, it can not react with anything else. Helium is inert. The next row in the periodic table contains the p orbital. When the p orbital is full, as in Neon, then it can not react. If you look at the periodic table, the orbitals can hold more electrons and each element can hold more orbitals. If it becomes possible to create an element with several hundred protons, the orbitals could hold many electrons.


The first energy of an atom can hold . electrons?

I assume you are referring to valence electrons (the "outermost" shell varies widely in the number of electrons it can hold, the valence electrons are a subset of this which are responsible for chemical bonding and reactivity).The number of valence electrons can only be from 1 electron to 8 electrons, these are divided between the s and p orbitals of a shell (each orbital can hold no more than 2 electrons).

Related questions

Why can a p sublevel hold 6 electrons while the s sublevel can hold no more than 2 electrons?

because sublevel p has 3 orbital and each orbital can hold up to 2 electrons meanwhile sublevel s only has 1 orbital and each can hold 2 electrons therefore sublevel p can hold more


How do you draw the lewis dot diagram for beryllium?

In your nucleus you should include the number of protons and neutrons. The number of protons can be found in the periodic table as the atomic number. To get the number of neutrons, subtract the protons from the atomic mass. Next, you draw the orbitals, and their respective electrons. Remember the number of electrons in each orbital. 1st orbital-2 electrons 2nd orbital- 8 electrons 3rd orbital- 18 electrons


Why 2 electrons are present in s orbital?

It is not the orbital that holds more electrons. All orbitals can hold a maximum of 2 electrons.However, the p-subshell can hold more electrons than the s-subshell. This is because the s-subshell is only made of 1 orbital, and 1 x 2 = 2, therefore it can only hold 2 electrons. The p-subshell is made of 3 orbitals, and 3 x 2 = 6, so it can hold a maximum of 6 electrons.So, a p-subshell can hold more electrons than an s-subshell because it is made up of more orbitals. It is not the orbitals that hold more electrons.


How many electrons can go into a orbital?

In an atom, electrons are in "shells", the first shell is around the center of the atom and holds a maximum of 2 electrons. Each subsequent shell out, will hold a maximum of 8 electrons. there is no maximum number of shells.


Penetrating effect of atomic orbitals?

An s orbital is closer to the nucleus than a p orbital, so it shields outer electrons more than a p orbital does. Therefore, it's penetration effect is greater than the p orbital's. The penetration effect is the tendency of orbitals closer to the nucleus shielding outer electrons.


Chlorine is more likely to try an empty its outermost orbital by losing electrons or fill its outermost orbital by gaining electrons?

Chlorine is MUCH more likely to fill its outermost orbital by gaining electrons.


Why all atom have 2 electron in first shell not more or less?

Actually, there is only one electron in a hydrogen atom, which has the atomic number 1. The existance of exactly two electrons in the innermost shell can be described by Shrodinger's Wave Equation. According to the Wave Equation, there is only one atomic orbital existing in the principal quantum number 1 energy level which is also known as 1s. Any atomic orbital can hold 2 electrons at most and it is the reason that every atom other than hydrogen have exactly 2 electrons in their innermost energy level.


How many electrons are present in an orbital formed from the overlap of two different atomic orbitals?

2 electrons. Each orbital can only have a maximum of 2 electrons according to quantum mechanics and more specifically Paulis theory... The over lap is occurring because each orbital only has 1 electron so the over lap when finished will have 2.


How many electrons can go in each orbital?

S can hold no more than 2 P can hold up to 6 D can hold up to 10 F can hold up to 14


Difference between bonding and anti bonding molecular orbital?

Bonding molecular orbital Its energy is less than that of parent atomic orbital.It is more stable than the parent atomic orbital.In B.M.O, the probability of finding electrons is maximum.Contribution of B.M.O is maximum towards the shape of molecule.Anti-bondingmolecular orbital Its energy is greater than that of parent atomic orbital.It is less stable than the parent atomic orbital.In A.B.M.O, the probability of finding electrons is minimum.It does not contribute towards the shape of molecule.


An electron in a 3s orbital penetrates into the region occupied by core electrons more than electrons in a 3p orbital?

True


Do atom orbitals contain thousands of electrons or just a few electron?

If you look at a periodic chart, you will see that each element has a number. That number gives the number of protons and electrons that each element contains. There are limits to the number of electrons that any orbital can contain. The orbitals are labeled: s, p, d, f, g, h, i, k. The first two atoms in the periodic table, Hydrogen and Helium, only have an s orbital. The s orbital holds two electrons. When the s orbital is full, as with Helium, it can not react with anything else. Helium is inert. The next row in the periodic table contains the p orbital. When the p orbital is full, as in Neon, then it can not react. If you look at the periodic table, the orbitals can hold more electrons and each element can hold more orbitals. If it becomes possible to create an element with several hundred protons, the orbitals could hold many electrons.