The atoms of a certain element each contain 11 protons and 1 valence electron. what's the element and it's chemical reactivity?

Select the correct text in the passage. which sentences describe examples of sustainable living? i live in an old apartment building downtown, but my company is based in an office park on the outskirts of the city. i drive an old car that needs to be replaced. i plan to buy a hybrid for better gas mileage, but for now i am able to carpool with a couple of friends from work. the drive to the office park is about 45 minutes each way, but we do get to work in a modern building. the architects just received a leed certification for the design.

What material does not melt at any temperature

Ajet plane is speeding down the runway during takeoff. air resistance is not negligible. identify the forces on the jet.