Quantum Numbers

A. It describes the position of an electron in an atom.

B. It describes the intrinsic spin of an electron and can be either +1/2 or -1/2.

C. It indicates the energy level of an electron.

D. It represents the angular momentum of an electron.

1/2

0

-1/2

-1

Values that describe the energy levels, orbitals, and spin of electrons in an atom.

Numbers that represent the mass of an atom.

Measurements of the temperature of electrons in an atom.

Constants used to calculate the speed of light.

n

2n

n²

n+1

+1/2

-1/2

0

+1

0 (s orbital)

1 (p orbital)

2 (d orbital)

3 (f orbital)

A quantum number that determines the size of the orbital.

A quantum number that indicates the orientation of the orbital in space and can take values from -l to +l.

A quantum number that defines the energy level of an electron.

A quantum number that specifies the spin of an electron.

m_l determines the orientation of the orbital in a magnetic field.

m_l indicates the energy level of the electron.

m_l defines the shape of the orbital.

m_l specifies the spin direction of the electron.

1 for the first electron

2 for the second electron

3 for the third electron

0 for no electrons

l can take values from 0 to (n-1), meaning l is always less than n.

l can take values from 1 to n, meaning l is always greater than n.

l can take values equal to n, meaning l is sometimes equal to n.

l can take values from 0 to n, meaning l is always greater than or equal to n.