How many electrons does a phosphorus atom need to achieve a noble gas configuration

What is the most stable monatomic ion formed from nitrogen

Transportation is the largest single source of air pollution in the united states. air pollution can harm the environment and human health. which technology could offer a solution to this problem? mufflers that reduce noise motors that run on electricity tires that improve gas mileage

Select all of the methods through which a drug can enter your body. injection swallowing inhalation absorption