# How do you determine the magnetic quantum number?

The magnetic quantum number, ml, is determined by first knowing the subshell, or angular momentum quantum number (l).

The s subshell (l=0) has one orbital: ml=0

The p subshell (l=1) has three orbitals: ml=-1, 0, +1

The d subshell (l=2) has five orbitals: ml=-2, -1, 0, +1, +2

A more generic formula is: ml = -l to +l

### What do quantum numbers describe?

n is the first quantum number. It is the principle quantum number. It refers to what energy level it is and will be one greater than the number of nodes in the orbital. l is the second quantum number. It is the angular momentum quantum number and refers to the shape of the orbital. ml is the third quantum number. It is the magnetic quantum number and it refers to the orientation of the orbital…

### What is a quantum number?

Four quantum numbers are used to describe electrons. The principle quantum number is the energy level of an electron. The angular momentum number is the shape of the orbital holding the electron. The magnetic quantum number is the position of an orbital holding an electron. The spin quantum number is the spin of an electron.

### What is the definition of quantum number?

Four quantum numbers are used to describe electrons. The principle quantum number is the energy level of an electron. The angular momentum number is the shape of the orbital holding the electron. The magnetic quantum number is the position of an orbital holding an electron. The spin quantum number is the spin of an electron.

### What is the quantum number for helium?

There are several different quantum numbers for a given atom (principle quantum number, the angular quantum number, the magnetic quantum number, the spin quantum number, etc) . I assume you are looking for the Principle Quantum number, n, which is equal to the row (period) in the period table in which the element is situated. For helium, the principle quantum number is 1. i.e. n = 1 As another example; the principle quantum number for…

### What is spin quantum number?

The spin quantum number, signified by the letter "s," is one of four quantum numbers that characterize the quantum state of an electron including a) the principal quantum number, b) teh azimuthal quantum number, c) the magnetic quantum number, adn the spin quantum number. The spin quantum number parameterizes the intrinsic angular momentum (spin angular momentum, or simply spin) of a given particle. Paul Dirac's wave equation in 1930, which unlike Schrodinger's was relativistically invariant…

### What are the possible values of the magnetic quantum number ml?

The magnetic quantum number, ml, runs from -l to +l (sorry this font is rubbish the letter l looks like a 1) where l is the azimuthal, angular momentum quantum number. The magnetic quantum number ml depends on the orbital angular momentum (azimuthal) quantum number, l, which in turn depends on the principal quantum number, n. The orbital angular momentum (azimuthal) quantum number, l, runs from 0 to (n-1) where n is the principal quantum…

### What ares the quantum numbers and their meanings?

Quantum numbers are the sets of numerical values which satisfies Schrodinger wave equation. There are four quantum numbers: Principal quantum number(n) showing number of shells available Azimuthal quantum number(l) showing orientation of the orbitals Magnetic quantum numbers(m) showing number of degenerate orbitals Spin quantum number(s) showing clockwise and anti clockwise spin of electrons

### Possible values of the magnetic quantum number m for f?

The magnetic quantum number ml depends on the orbital angular momentum (azimuthal) quantum number, l, which in turn depends on the principal quantum number, n. The orbital angular momentum (azimuthal) quantum number, l, runs from 0 to (n-1) where n is the principal quantum number. l= 0 is an s orbital, l= 1 is a p subshell, l= 2 is a d subshell, l=3 is an f subshell. The magnetic quantum number, ml, runs from…

### What are the four main quantum numbers?

The names of the quantum numbers are: Principal Quantum number (n) Angular Momentum Quantum Number (l) Magnetic Quantum Number (m) Spin Quantum Number (+1/2 and -1/2) The "n" gives the energy level of the electron then the "l" which is the sublevel then "m" which tells you which orbital it is in and last "s" which tells you if the electron is going to have a positive or negative 1/2 spin

### Is Magnetic quantum number ever larger than the principle quantum number?

No, for any given electron, the principle quantum number will be larger. For example, a second shell, p-subshell electron will have the quantum numbers {2, 1, ml, ms} where ml can be -1, 0, or 1 and, as always, ms can be Â½ or -Â½. The largest ml can be is +1, which is smaller than the principle quantum number, 2.

### How many electrons are in the innermost shell of an atom?

The innermost shell of an atom is the shell corresponding to the principal quantum number of 1. Because the principal quantum number is 1, the angular quantum number and the magnetic quantum number of that shell must be 0. Therefore, only 2 electrons can possibly be in the innermost shell, one with spin up and the other with spin down.

### How are the shapes of electron orbitals determined?

Shapes of electron orbitals are determined by solving the equation of quantum mechanics, also called as Schrodinger wave equation. Schrodinger equation's solution is the wave function which is centered around three quantum numbers which are: Principal Quantum Number : Determines the size, energy and shell of the orbital Azimuthal Quantum Number or Orbital angular momentum or Subsidiary quantum Number :-Determines the shape of orbital and energy of orbital to a little extent. Magnetic Quantum Number…