Heisenberg Uncertainty Principle in Chemistry of Materials
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Questions and Answers

What are the possible values of the spin quantum number?

The spin quantum number can take the values s = +½ or s = -½.

How do two electrons with different values of s exhibit their spins?

Two electrons with different values of s exhibit opposite spin.

What does the magnetic quantum number m denote?

The magnetic quantum number m denotes the orientation of the orbital.

According to the exclusion principle of Pauli, what is not possible in one atom?

<p>According to the exclusion principle of Pauli, it's not possible that in one atom two electrons have exactly the same set of quantum numbers.</p> Signup and view all the answers

What is the designation of the subshell with l = 0 in the second main shell (n = 2)?

<p>2s</p> Signup and view all the answers

What is the shape of s-orbitals?

<p>Spherical</p> Signup and view all the answers

How many orbitals are there for l = 1? What are the values of the magnetic quantum number for these orbitals?

<p>Three orbitals; -1, 0, and 1</p> Signup and view all the answers

What is the requirement to complete the description of an electron?

<p>Spin quantum number</p> Signup and view all the answers

What is the uncertainty principle in quantum mechanics?

<p>The uncertainty principle is inherent in the properties of all wave-like systems and arises in quantum mechanics due to the matter wave nature of all quantum objects.</p> Signup and view all the answers

What are states satisfying the equality in the uncertainty principle called?

<p>States satisfying the equality are called intelligent states or critical states.</p> Signup and view all the answers

What is the relationship between x and p in the uncertainty principle?

<p>The intelligent states are Gaussians that come from the continuous Fourier transformation relationship between x and p.</p> Signup and view all the answers

Why is a conventional calculation of electron orbits in the atomic scale not possible?

<p>A conventional calculation of electron orbits in the atomic scale is not possible due to the significantly high uncertainty in these dimensions.</p> Signup and view all the answers

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