Donita is a firearms investigator. She collects evidence on a suspect’s skin and clothing for gunshot residue. Which of the following tests are best used for skin and which is best for clothing?

the atomic number will stay the same no matter how many electrons it has, so it doesn’t decrease nor increase. it’ll only change with a different number of protons

the increase of protons   hope this

the volume increases

the answer your looking for is c).