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Based on the Heisenberg uncertainty principle, the early developers of quantum theory determned that wave functions give only the probability of finding an electron at a given place around the nucleus. Thus, electrons do not travel around the nucleus in neat orbits, as Bohr had postulated. Instead, they exist in certain regions called orbtals. See pgs. 99-100 in Modern Chemistry Answer The Heisenberg uncertainty principle says that the position and momentum of a particle cannot be found simultaneously. In the case of electrons which have very high velocities (thus much momentum) they can only occupy spread-out regions if one knows their velocity. The spread-out region can be thought of as a cloud but is really a region of probability where the electron is likely to be found were one to determine its velocity. The fact that two electrons maximum can occupy a single orbital (be it an s, p, d or f orbital) at a time has much to do with the Pauli Exclusion Principle as well.
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoSimply put, Heisenberg discovered that certain pairs of physical properties cannot be known to equal certainties. In fact, the more precisely you know one, the less precisely you know the other. In the electron's case, this pair of properties are velocity and position. Knowing the velocity of an electron means that we cannot precisely know the position.
So, because we only have an idea of the probability of the location of the electron, we cannot know where it definitely is. This composite of probable locations is known as a cloud.
Wiki User
∙ 12y agoHeisenberg's huge breakthrough was showing that one could calculate certain measurable variables of a quantum mechanical system without knowing the exact nature of that system. After developing the matrix math for these calculations, he noted that position and momentum did not "commute" (sorry, that's a term in matrix mathematics you'll have to learn about yourself). Heisenberg soon realized that this mathematical fact meant that the uncertainty (more precisely, the standard deviation) of any simultaneous measurement of these two quantities would, if multiplied together, HAVE to be no smaller than Planck's Constant.
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States that is imposible to know both the velocity and the position of a particle at the same time?
The heisenberg uncertainty principle is what you are thinking of. However, the relation you asked about does not exist. Most formalisms claim it as (uncertainty of position)(uncertainty of momentum) >= hbar/2. There is a somewhat more obscure and less useful relation (uncertainty of time)(uncertainty of energy) >= hbar/2. But in this relation the term of uncertainty of time is not so straightforward (but it does have an interesting meaning).
Heisenberg is famous for what principle?
the Heisenberg uncertainty principle
Is the Uncertainty Principle a scientific law or theory?
Since it is called "the Heisenberg Uncertainty Principle" it is neither a scientific law nor a theory. It is a principle.
What is important about the uncertainty principle?
Heisenberg's Uncertainty Principle is the principle that states that the momentum and the position of a quantum particle can not be simultaneously accurately known. This means that the more precisely you know the momentum, the less you know about the position and vice-versa.
What is the significance of uncertainty principle in your daily life?
The Heisenberg uncertainty principle, which is very important at the subatomic level, has no affect on my daily life.
What is the Warren-Heisenburg Uncertainty Principle?
noob valencia
The particles in matter are in what at all times?
motion... if they weren't they would violate Heisenburg's uncertainty principle.
What is the Heisenburg principle?
Also referred to as the 'uncertainty' principle, it is a principle in quantum mechanics holding that increasing the accuracy of measurement of one observable quantity increases the uncertainty with which another conjugate quantity may be known.
States that is imposible to know both the velocity and the position of a particle at the same time?
The heisenberg uncertainty principle is what you are thinking of. However, the relation you asked about does not exist. Most formalisms claim it as (uncertainty of position)(uncertainty of momentum) >= hbar/2. There is a somewhat more obscure and less useful relation (uncertainty of time)(uncertainty of energy) >= hbar/2. But in this relation the term of uncertainty of time is not so straightforward (but it does have an interesting meaning).
Write the equation of uncertainty principle?
The equation of uncertainty principle is ΔxΔp≥ℏ.
What are the release dates for Uncertainty Principle - 2010 I?
Uncertainty Principle - 2010 I was released on: USA: January 2010
Heisenberg is famous for what principle?
the Heisenberg uncertainty principle
What is the relation between orbital concept and heisenberg's uncertainty principle?
Heisenberg's uncertainty principle affects the behaviour of orbitals.
Is the Uncertainty Principle a scientific law or theory?
Since it is called "the Heisenberg Uncertainty Principle" it is neither a scientific law nor a theory. It is a principle.
What is important about the uncertainty principle?
Heisenberg's Uncertainty Principle is the principle that states that the momentum and the position of a quantum particle can not be simultaneously accurately known. This means that the more precisely you know the momentum, the less you know about the position and vice-versa.
Where was the uncertainty principle founded?
Germany
When was The Uncertainty Principle - The Spectacular Spider-Man - created?
The Uncertainty Principle - The Spectacular Spider-Man - was created on 2008-05-10.
