The F quantum number is an intrinsic angular-momentum quantum number used to describe the electronic configuration of atoms. It is usually represented by the letter F and is the fourth of the four quantum numbers used to describe the state and energy of electrons in an atom.
It is related to the angular momentum of the electron, which is the same as the orbital angular momentum of the atom. The magnitude of this angular momentum is dependent on the principle quantum number (n) and the angular momentum quantum number (l).
The value of F is related to the values of n and l, and can be determined using the formula F = 2l + 1. It can take on any integer value between 0 and 2l+1. This quantum number is used to differentiate between different subshells of the same orbital.
For example, the F quantum number is used to differentiate between the s, p, d, and f orbitals.
Table of Contents
Which is the correct order for the 4 quantum numbers of electrons?
The correct order for the four quantum numbers of electrons is the principal quantum number (n), the azimuthal quantum number (l), the magnetic quantum number (ml), and the spin quantum number (ms). The principal quantum number (n) indicates the average distance of an electron from the nucleus as a whole and correlates with the size and energy of the orbital.
The azimuthal quantum number (l) represents orbitals and states the type of orbital such as s (spherical), p (planar), d (dumbbell shaped) and f (tetrahedral or octahedral). The magnetic quantum number (ml) represents the orbital shape within a sublevel and has a range of values from -l to +l, with l being the azimuthal quantum number.
Lastly, the spin quantum number (ms) is either +1/2 or -1/2 and distinguishes the two possible spin orientations of the electron.
What is the last electron configuration of molecule chlorine Cl with the atomic number of 17?
The last electron configuration of molecule chlorine Cl with the atomic number of 17 is 2-8-7. This is because chlorine has an atomic number of 17, which indicates that it has 17 protons and 17 electrons.
According to the Aufbau principle, electrons fill orbitals in order of increasing energy, starting at 1s and moving outward. Thus, the first 2 electrons will fill the 1s orbital, the next 8 electrons will fill the 2s and 2p orbitals, and the final 7 electrons will fill the 3s and 3p orbitals.
This results in the electron configuration of 2-8-7.
How many f orbitals are there for a given quantum number?
For a given quantum number, there are five f orbitals. They are denoted as fx, fy, fz, fxx, and fyy. The quantum number is related to the total angular momentum of the electron and determines the number of the f orbitals, as well as its shape.
These orbitals are distinguished from the other orbitals by the fact that they have a higher principal quantum number and that their shapes are more complex due to their higher angular momentum. Each orbital has a fixed number of radial nodes and is anisotropic, that is, its shape depends on which axis, the x, y, or z, is viewed from.
Altogether, five f orbitals exist with respect to the quantum number given.
How many f orbitals are possible?
There are seven possible f orbitals. These are f₀, f₁, f₂, f₃, f₄, f₅, and f₆, with f₀ being the lowest energy orbital and f₆ being the highest energy orbital. The f orbitals exist at the outermost shell of large atoms, such as uranium, and they possess a greater angular momentum than the other kinds of orbitals.
The f orbitals also have a different shape than the s, p, and d orbitals, and they can contain up to fourteen electrons. As a result, f orbitals can be used to explain the stability and structure of some complex molecules.
Why does F have 7 orbitals?
F has 7 orbitals due to its electronic configuration. It’s the last element in the p block with a full valence shell of s2 p5 and a single 3d2 electron in its outer shell. When the element is filled with electrons it follows the Aufbau principle which follows the pattern of filling up the orbitals starting with the lowest energy orbitals.
In this case it starts with the s orbital, then goes to the 3 p orbitals (px, py, and pz) for a total of 5 electrons. The remaining two electrons fill up the two highest energy orbitals (3dz2 and 3dx2-y2).
This means it has a total of 7 orbitals, 2s2 2p2 3dz2 3dx2-y2. These 7 orbitals explain why F has 7 orbitals.
Are there only 4 orbitals?
No, there are more than 4 orbitals. Orbitals are categorized according to the specific total angular momentum of the electron in the orbital. This angular momentum is described by a quantum number, known as n, that describes the principal quantum number.
The higher the value of n is, the higher the energy associated with that orbital. For each value of n, there are a series of orbitals. There are also four general types of orbitals (s, p, d, and f). Each type of orbital is characterized by the angular momentum (l) quantum number, which is related to the shape and orientation of the orbital.
For the principal quantum numbers n=1, 2, and 3 there are 1, 4, and 9 orbitals respectively. For n=4 there are 16 orbitals and for higher values of n the number of orbitals increases. Each orbital can contain up to two electrons, with opposite spin.
Therefore, the total number of possible orbitals is quite large. For example, for an atom with 50 electrons, there could be as many as 900 orbitals.
