How many electrons in each energy level of Flouride

Find the mass in grams of 1.37x1020 particles of h3po4

The human activities in two locations are described below: location a: rampant use of plastic containers location b: excessive use of pesticides and fertilizers which statement is most likely true? location a will have poor air quality because plastic is biodegradable. location a will experience water scarcity because plastic absorbs moisture. the population of honeybees will increase in location b because production of crops will increase. the population of fish in location b will decrease because the water is contaminated.

Show how to convert the temperature 84.7° c to kelvin. include all steps and label the final answer