The requirement ("Pauli Exclusion Principle") is that they must be different in at least one of their properties ("quantum numbers").
Electrons can occupy the same orbital if they have opposite spin motion.
They must have opposite spins. This is according the the Pauli Exclusion Principle.
Opposite spins.
they have opposite spins
opposite spins to each other
If two electrons are to occupy the same orbital, they must have opposite spin.
No. Electrons are fermions, meaning they cannot share the same set of four quantum numbers. Usually when we say "orbital" we only mean the first three, so there is room for two electrons in an orbital (corresponding to the two possible ms values).
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).
It depends what type of orbital these two electrons occupy. But there would be one arrow going up and one arrow going down to show two electrons in the same orbital.
The arrows indicate the spin of the electron, which is either +1/2 or -1/2. This it also indicates the magnetic quantum number, or the fourth quantum number.
If two electrons are to occupy the same orbital, they must have opposite spin.
Spin
they have opposite spin
No. Electrons are fermions, meaning they cannot share the same set of four quantum numbers. Usually when we say "orbital" we only mean the first three, so there is room for two electrons in an orbital (corresponding to the two possible ms values).
only if spins are opposite: one up one down.
Two electrons can occupy the same space orbital in an atom if they have different spins. This is known as Hund's Rule.
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).
All other orbitals at the sub contain at least one electron
It depends what type of orbital these two electrons occupy. But there would be one arrow going up and one arrow going down to show two electrons in the same orbital.
An electron pair are two electrons which occupy the same orbital in an atom or molecule. Paired electrons are represented by two dots.
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.
The arrows indicate the spin of the electron, which is either +1/2 or -1/2. This it also indicates the magnetic quantum number, or the fourth quantum number.