How many moles are in 28.02 g of nitrogen?

Abullet found at a crime scene may be used as evidence in a trial if the percentage of metals match to the composition of metals in a bullet from the suspect's ammunition. a forensic scientist's analysis of the bullet shows that it contains 11.9 g of lead, 0.5 g of tin, and 0.8 b of antimony. what is the percentage of lead metal in the bullet? express your answers to the one's place.

The difference between the atomic number of an element and the element’s atomic mass is the number of ions.

Particles vibrate in a rigid structure and do not move relative to their neighbors.