What’s the full electronic configuration for lead

Identifying limitations of kinetic-molecular theorya chemist is studying the properties of a gas under various conditions. he observes that when the gas is at room temperature and low pressure, it behaves as an ideal gas. when the gas is cooled to 10 kelvin and is placed under high pressure, however, it deviates significantly from an ideal .

Is it safe to take 450mg of diphenhydramine hydrochloride?

The independent variable in an experiment will be the variable that you o a) change ob) hold constant ng c) observe for changes