When crime scene evidence is collected, labeled, and documented? only just after the scene is found and secured

throughout the investigation

When court ordered

it depends on the case

more infor would

a lot

the seeing the electronic configuration we can say that the element is fluorine.

fluorine is the most electronegative element in the periodic table.

but by only seeing the configuration we cannot say about its reactivity because we don't know if its configuration after excitation or by addition of electrons.

but if not then, it is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. as the most electronegative element, it is extremely reactive: almost all other elements, including some noble gases, form compounds with fluorine.

window cleaner is ammonia dissolved in water. this is an example of a