5.2. The Quantum Mechanical Model http://www.ck12.org
- Name two ways in which an electron that occupies then= 2 principal energy level is different from an electron
that occupies then= 1 principal energy level. - Identify which quantum number describes each of the following.
a. the orientation of an orbital in space
b. the direction of electron spin
c. the main energy of an electron
d. the shape of an orbital
Problems
- What is the wavelength (in nm) of an electron moving at 250 m/s? If this wavelength belonged to a photon, in
what region of the electromagnetic spectrum would it belong? - What are the possible values oflthat an electron in then= 3 principal energy level can have? Which sublevel
does each of thoselvalues represent? - What are the possible values ofmlthat an electron in thepsublevel can have?
- Which of the following combinations of principal energy level and sublevelcannotexist?
a. 4d
b. 3f
c. 1p
d. 2s
e. 3p
f. 2d - How is apzorbital different from apxorbital? How are they the same?
- How many orbitals are found in each of the following?
a. anyssublevel
b. anyfsublevel
c. then= 2 principal energy level
d. the 4psublevel
e. then= 3 principal energy level - What is the maximum number of electrons that can occupy each of the following?
a. any single orbital
b. then= 2 principal energy level
c. the 3dsublevel
d. then= 4 principal energy level
e. the 2psublevel