Question

question 15 (1 point)
what is the number of electrons in the outermost energy level of an oxygen atom?
6
2
8
4
question 16 (1 point)
which color of visible light has the shortest wavelength?
blue
yellow
green
violet
question 17 (1 point)
how are the frequency and wavelength of light related?
they are directly proportional to each other.
they are inversely proportional to each other.
wavelength is determined by dividing frequency by the speed of light.
frequency equals wavelength divided by the speed of light.

Explanation:

• Question 15: Oxygen has an atomic number of 8. Its electron configuration is \(1s^{2}2s^{2}2p^{4}\). The outermost energy level (second energy level) has \(2 + 4=6\) electrons.
• Question 16: In the visible light spectrum (ranging from approximately 400 - 700 nm), violet light has the shortest wavelength (around 400 - 450 nm).
• Question 17: The relationship between the frequency (\(

u\)) and wavelength (\(\lambda\)) of light is given by the formula \(c =
u\lambda\) (where \(c\) is the speed of light). Rearranging gives \(
u=\frac{c}{\lambda}\), which shows that frequency and wavelength are inversely proportional.

Answer:

• Question 15: a. 6
• Question 16: d. violet
• Question 17: b. They are inversely proportional to each other.