Question

Consider the following statements as they apply to radiation sources and atomic spectroscopy. Decide if each is true or false.

true or false: A hollow cathode lamp emits light of one wavelength only.

true or false: A hollow cathode lamp is used as an AAS source because its emission lines are very broad.

true or false: Neutral Ca atoms, singly charged Ca ions, and doubly charged Ca ions each have their own characteristic emission energies.

true or false: Photons transmitted through the sample are detected in AES.

true or false: Gaseous cations dislodge metal atoms from the cathode surface in a hollow cathode lamp in a process called sputtering.

Answer 1

Soln:

A hollow cathode lamp emits light of one wave length only------------ True

A hollow cathode lamp is used as an AAS source because it's emission lines are very broad--------False

Neutral Ca atoms,Singly charged Ca ions and doubly charged Ca ions each have their own characteristic emission energies---------True

Photons transmitted through the sample are detected in AES------False

Gaseous cations dislodge metal atoms from the cathode surface in a hollow cathode lamp in a process is called sputtering--------True