Question

1. look at the spectra. identify the unknown atoms. then, choose the best answer. what atom likely makes up the unknown gas? hint: look for similarities among the spectra helium mercury oxygen hydrogen sodium 2) look at the spectra. identify the unknown atoms. then, choose the best answer. which atom is least likely to make up the unknown gas? helium hydrogen oxygen mercury sodium

Explanation:

Without seeing the actual spectra, we can make some general - knowledge based deductions. Different atoms have unique spectral signatures. Mercury is a liquid at room - temperature and is less likely to be in a gaseous state in common scenarios compared to the others. For the first question, hydrogen is a very common gas - forming atom.

Answer:

1. D. hydrogen
2. D. mercury