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).
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