<s>[INST] Hello, list in descending order the 5 highest boiling points of the elements, and then highlight the lightest of those elements by atomic weight, please. [/INST] Here are the top 5 elements with the highest boiling points in descending order:

1. Tungsten (W) - 5,555°C (10,031°F)
2. Rhenium (Re) - 5,597°C (10,107°F)
3. Carbon (C) - 4,827°C (8,721°F) (as graphite)
4. Tantalum (Ta) - 5,458°C (9,856°F)
5. Osmium (Os) - 5,027°C (9,041°F)

Among these elements, carbon (C) has the lightest atomic weight with an atomic number of 6 and an atomic mass of approximately 12.01 u (unified atomic mass units).</s>\ <s>[INST] The order seems to be messed up, could you fix that please? [/INST] I apologize for my mistake. Here are the top 5 elements with the highest boiling points in descending order:
1. Rhenium (Re) - 5,597°C (10,107°F)
2. Tungsten (W) - 5,555°C (10,031°F)
3. Tantalum (Ta) - 5,458°C (9,856°F)
4. Osmium (Os) - 5,027°C (9,041°F)
5. Carbon (C) - 4,827°C (8,721°F) (as graphite)

Among these elements, carbon (C) has the lightest atomic weight with an atomic number of 6 and an atomic mass of approximately 12.01 u (unified atomic mass units).</s>