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I believe no scientist said exactly this. It is the (two) electrons in the same orbital that must have opposite spins. And the scientist who said that was Wolfgang Pauli in 1925. (Pauli exclusion principle)

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Q: Which scientist said an orbital must have opposite spins?
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Continue Learning about Chemistry

Electrons can occupy the same orbital if they have opposite what?

The requirement ("Pauli Exclusion Principle") is that they must be different in at least one of their properties ("quantum numbers").


Two electrons in the same orbital must have opposite spins is a statement of the?

Electrons have spin of a 1/2. These make electrons fermions. According to Pauli's exclusion principle, no more than one fermion can have the same spin in the same space. So, the electrons occupying the same space must have opposite spin (and so, only two electrons can occupy the same orbital as a result of this, as three electrons will results in two electrons having the same spin state).


Why do two electrons in the same orbital have to have opposite spin states?

Yes. Always. Otherwise they would break the fundamental rules of quantum mechanics, which say that no two electrons can have the same four quantum numbers -- and spin is the 4th quantum number. If two e- are in the same orbital, they share 3 quantum numbers, but the spin quantum number must then be different.


When can two electrons occupy the same orbital according to Pauli's exclusion principle?

If two electrons are to occupy the same orbital, they must have opposite spin.


What is a molecular orbital vs an atomic orbital?

according to MOT each energy level can be occupied by 2 electrons which must have opposite spins these pairs of electrons considered to occupy molecular orbital. so molecular orbital is formed from the overlap of the atomic orbitals of the atoms making up the bond.

Related questions

Electrons can occupy the same orbital if they have opposite what?

The requirement ("Pauli Exclusion Principle") is that they must be different in at least one of their properties ("quantum numbers").


Why must the two arrows within a single bloc of an orbital diagram be written in opposite directions?

The two arrows with a single block of an orbital diagram must be written in opposing directions because the electrons are said to be rotating in opposite directions. This means the two electrons in the orbital are spinning on their axis in opposite ways.


How do electrons in the same atom differ?

The electrons have different energy levels.


Why do two electrons in the same orbital have to have opposite spin states?

Yes. Always. Otherwise they would break the fundamental rules of quantum mechanics, which say that no two electrons can have the same four quantum numbers -- and spin is the 4th quantum number. If two e- are in the same orbital, they share 3 quantum numbers, but the spin quantum number must then be different.


Two electrons in the same orbital must have opposite spins is a statement of the?

Electrons have spin of a 1/2. These make electrons fermions. According to Pauli's exclusion principle, no more than one fermion can have the same spin in the same space. So, the electrons occupying the same space must have opposite spin (and so, only two electrons can occupy the same orbital as a result of this, as three electrons will results in two electrons having the same spin state).


When can two electrons occupy the same orbital according to Pauli's exclusion principle?

If two electrons are to occupy the same orbital, they must have opposite spin.


What is the Pauli exclusion?

An orbital can hold not more than 2 electrons, and if there are two electrons in the orbital, they must have opposite (paired) spins. Therefore, no two electrons in the same atom can have the same set of four quantum numbers. otherwise the Pauli exclusion principle explain that the feature of particles dependent on its nature. for example electrons is fermion thus 2 electrons can accommodate in one level (orbital) but proton is bozone thus 1 proton accommodate in one level.


Who is credited with stating that each orbital can hold two electrons and that these electrons must spin in opposite directions?

Pauli - it is the Pauli exclusion principal.


What is the electron filling rule that states that any electronic orbital must be filled by 2 electrons of opposite spin?

the pauli exclusion principle


What is a molecular orbital vs an atomic orbital?

according to MOT each energy level can be occupied by 2 electrons which must have opposite spins these pairs of electrons considered to occupy molecular orbital. so molecular orbital is formed from the overlap of the atomic orbitals of the atoms making up the bond.


How many electrons can any orbital hold according to Pauli Exclusion Principle?

When you fill an orbital the electrons must spin in opposite directions. This results in no two electrons having the same quantum number, a result defined as the Pauli Exclusion Principle. You can have 2 electrons in an orbital. Note that 2py 2px and 2pz are three different orbitals.


Why scientist must carefully set the right orbital speed of a satellite orbiting earth?

Scientists must carefully set the right orbital speed for a satellite that will be orbiting Earth, so that it will orbit correctly. The wrong speed will have the satellite move too fast, or too slow, skewing information and possibly causing the satellite to fall out of orbit and back to the planet's surface.