A chemist uses atomic absorption spectroscopy to determine the concentration of a metal ion in a solution. What is the principle behind this technique?
Q1. A chemist uses atomic absorption spectroscopy to determine the concentration of a metal ion in a solution. What is the principle behind this technique?
Answer: Absorption of light by free atoms
Explanation: Absorption of light by free atoms is the principle behind atomic absorption spectroscopy, as it measures the amount of light absorbed by the metal ion.