Part A What is the ionization energy of element X? Express your answer using thr

Question

Part A

What is the ionization energy of element X?

Express your answer using three significant figures.

Part B

What wavelengths are observed in the absorption spectrum of element X? Express your answers in nm.

Express your answers using three significant figures. Enter your answers in ascending order separated by a comma.

Part C

State whether each of your wavelengths in part B corresponds to ultraviolet, visible, or infrared light.

Item 11 What is the ionization energy of element X? Express your answer using three significant figures The first three energy levels of the fictitious element X are shown in the figure(Figure 1) Submit My Answers Give Up Incorrect, Try Again, 3 attempts remaining Part B What wavelengths are observed in the absorption spectrum of element X? Express your answers in nm. Express your answers using three significant figures. Enter your answers in ascending order separated by a comma nm Figure 1 Submit My Answers Give Up Part C E (eV) 0.00 State whether each of your wavelengths in part B corresponds to ultraviolet, visible, or infrared light -2.00 -3.00 @ ! is ultraviolet. 2 is infrared O | is ultraviolet, 2 is visible | is visible. 2 is infrared both wavelengths are infrared both wavelengths are visible 6.50 both wavelengths are ultraviolet Submit My Answers Give Up

Explanation / Answer

B.
Absorption spectrum includes transitions from n = 1 to n= 2 and n=1 to n=3.
the corresponding wavelengths are
hc/ = 3.5 eV and hc = 4.5 eV

= (6.63*10^-34)(3*10^8) / (3.5)(1.6*10^-19) = 355 nm
and
= (6.63*10^-34)(3*10^8) / (4.5)(1.6*10^-19) = 276 nm

C.
Both wavelengths are in the ultraviolet part of the spectrum.

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