PES Intro

Correctly label all of the orbitals on the peaks of this PES

a

b

c

d

e

f

g

4s

1s

3d

3p

2p

2s

3s

PES essentially measures which of the following?

• The binding energies of electrons in a material.
• The color spectrum of a material.
• The density of a material.
• The temperature of a material.

The number of peaks seen in a PES represent what?

• • the number of orbitals in that atom.

• The total mass of the atom.

• The number of chemical bonds present.
• the distance of the electrons to the nucleus.

The smaller peaks in a PES represents ​ (a)  

• the electrons most tightly bound to the nucleus
• the orbitals with the most electrons
• the electrons least tightly bound to the nucleus
• the orbitals with fewer electrons

Select the peak that has the strongest binding energy to the nucleus

Based on the electron configuration in the picture what element is represented by this PES?

• Indium (In)

• Germanium (Ge)

• Zinc (Zn)

• Gallium (Ga)