Question 1

Which pair has the same number of electrons?

Accepted Answer

A)  Na+ and O 
B)  O and F- 
C)  Na+ and Ne 
D)  Cl- and F

Question 2

The orange color of a neon lamp results from an electric current being passed through a tube filled with neon gas. If this light passes through a prism, the light divides into distinct "lines" of colored light. This pattern is called the _____ of neon.

Accepted Answer

A)  line spectrum 
B)  atomic mass 
C)  electron configuration 
D)  elemental identity

Question 3

An atom lost two valence electrons, resulting in a configuration of 1s22s22p63s23p2. The identity of this ion is:

Accepted Answer

A)  S2+. 
B)  S2-. 
C)  P3-. 
D)  Mg2+.

Question 4

Of the choices given, which portion of the electromagnetic spectrum has the HIGHEST frequency?

Accepted Answer

A)  radio 
B)  infrared 
C)  UV 
D)  gamma rays

Question 5

A photon has the energy 5.55 × 10-19 J. What is this photon's wavelength in nanometers?

Accepted Answer

A)  358 nm 
B)  590 nm 
C)  3.58 × 10-5 pm 
D)  222 nm

Question 6

Of the choices given, which portion of the electromagnetic spectrum has the GREATEST wavelength?

Accepted Answer

A)  radio 
B)  infrared 
C)  UV 
D)  gamma rays

Question 7

The Sun gives off light because of:

Accepted Answer

A)  nuclear fission. 
B)  nuclear fusion. 
C)  IR radiation. 
D)  UV radiation.

Question 8

The 4d sublevel contains how many orbitals?

Accepted Answer

A)  one 
B)  three 
C)  five 
D)  seven

Question 9

The type of radiation that the human body gives off is _____ radiation.

Accepted Answer

A)  visible 
B)  IR 
C)  UV 
D)  radio-wave

Question 10

What is the wavelength of a photon of light with a frequency of 5.00 × 1014 Hz?

Accepted Answer

A)  600 nm 
B)  1.66 × 106 nm 
C)  6.00 × 10-7 nm 
D)  550 nm

Exam 4: Light and Electronic Structure