How are atoms related to elements

Atoms are what make up the elements. It's just differences between those groups of atoms that make the distinctive elements that we know and use today in the Periodic Table. The differences between two very unlike elements could really be just one proton or one neutron, but it causes a large change because of the physical interactions that differ between it and other things.

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firearm identification is the process of analyzing the bullets and cartridge cases left at a crime scene to determine if they came from a particular firearm. marks on the bullets and cartridges may be common to every firearm of that type. these are called class characteristics.

i think the answer would be reserve.