A. hot solids
B. excited polyatomic molecules
C. molecules in the ground molecular state
D. excited atoms
Submitted by: Dr.Tassawer-e-Meran
Correct Answer: excited atoms ✔
Last Updated: April 05, 2022
A. hot solids
B. excited polyatomic molecules
C. molecules in the ground molecular state
D. excited atoms
Submitted by: Dr.Tassawer-e-Meran
Correct Answer: excited atoms ✔
Last Updated: April 05, 2022