Answer:
See explanation
Explanation:
Electrons transition between energy levels in an atom due to gain or loss of energy. An electron may gain energy and move from its ground state to one of the accessible excited states. The electron quickly returns to ground state, emitting the energy previously absorbed as a photon of light. The wavelength of light emitted is measured using powerful spectrometers.
Atoms can be excited thermally or by irradiation with light of appropriate frequency.
Answer:
C: Carbon
Explanation:
Hydrogen, oxygen, and carbon are the most important elements in organic compounds.
Answer:
A hypothesis or a model is called falsifiable if it is possible to conceive of an experimental observation that disproves the idea in question.
I think is the letter B but i dont know if its right
