standard temperature and pressure- standard temperature = 273K = 0°C- standard pressure = 760 torr = 101.3 kPa = 1 atm- 11 gasses @ room temp (noble gasses = diatomics above Br); one mole of gas occupies 22.4 L @ STP- 2 liquids @ room temp (Hg and Br)- Rest are solid

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1. standard temperature and pressure
- standard temperature = 273K = 0°C
- standard pressure = 760 torr = 101.3 kPa = 1 atm

- 11 gasses @ room temp (noble gasses = diatomics above Br); one mole of gas occupies 22.4 L @ STP
- 2 liquids @ room temp (Hg and Br)
- Rest are solid