Exam 3: Atomic Structure Explaining the Properties of Elements

Based on the following data and graph, which metal will emit the highest energy photoelectron when a 250 nm photon is incident on the metal? Work functions are in J * 10^-19.

Place these types of radiation in order of increasing energy per photon. I.yellow light from a street lamp II.x-rays from a dental x-ray III.microwaves from your cell phone IV.radio waves from your favorite FM station

Which of the following statements about the aufbau principle is NOT true?

Light intensity (I) can be described as the power emitted by a light source (P) over a given area in meters squared).Suppose a 100 W mercury vapor lamp emits 365.4 nm photons equally in all directions.At a distance of 1.450 m, how many photons hit per square meter per second? (1 W = 1 J/s; I = P/Area = P/4 $\pi$ d ² , where d is the distance.)

De Broglie proposed that $\lambda$ = h/mv.Define the symbols in this equation and describe the significance of de Broglie's proposal.

Which of the following is the correct electron configuration for copper?

Write the electron configuration of Pd.

Cesium atomic clocks are based on the emission of microwave radiation at 9,192,631,770 Hz by cesium-133.The wavelength corresponding to this frequency is closest in value to which of the following?

Electron affinity is the energy change that occurs _______.

Indicate which one of the following sources produces the highest energy photons.

The size of a typical atomic orbital is on the order of _______.

Identify which element, potassium or bromine, has the larger electron affinity and explain why.

In comparing the Fraunhofer lines with light emitted by elements in a flame, Bunsen and Kirchhoff demonstrated that _______.

Which of the following types of electromagnetic radiation has the highest frequency?

Arrange the following elements in order of increasing largest negative) electron affinity: K, Ge, Kr, S, Si.

What $l$ quantum numbers are possible when n = 3?

You synthesize an atom that appears to fit under francium in the periodic table.Which of the following would you predict to be the correct condensed electron configuration for this atom?

Which of the following elements would you expect to have the greatest first ionization energy?

The energy change for an electronic transition in a one-electron atom or ion H, He⁺, Li²⁺, etc.) from n _initial to n _final Is given by , $\left(-2.178 \times 10^{-18} \mathrm{~J}\right) Z^{2}\left(\frac{1}{n_{\text {final }} 2}-\frac{1}{n_{\text {initial }} 2}\right)$ where Z is the atomic number. Which one of the following species will have the longest wavelength emission line for the transition between the n_initial = 2 and n_final = 1 levels?

Which statement below about atoms containing more than one electron is FALSE?