Four possible electron configurations for a nitrogen atom are shown below, but only one schematic represents the correct configuration for a nitrogen atom in its ground state. which one is the correct electron configuration?

There is only one electronic configuration possible for nitrogen. It must follow the three basic rules of quantum mechanics: Aufbau's Principle, Hund's Rule and Pauli-Exclusion Principle. Nitrogen has 7 electrons at ground state (neutral). They are arranged as shown in the attached picture.

Mass is the amount of matter in an object.  weight is the measurement of the pull of gravity on an object.  say for example, you travel to the moon which has a different gravitational field compared to the gravitational field of earth. (gravitational fields: earth = 1, moon = 0.165)  now when you are on the moon, the pull of gravity on you is different than on the earth. and as weight is the measurement of the pull of gravity on an object, that means yes, your weight can and will change on the moon.  however, on the moon, on earth or even on jupiter, the amount of mass inside of you remains the same. meaning your physical mass remains constant.  in conclusion it is possible for your weight to change as your mass remains constant. 

What is the gold assay