* Silver is a metal, and metals are excellent conductors of electricity. This is because they have free-moving electrons in their outer shells, which can easily carry an electrical current.
* Nitrogen and sulfur are nonmetals, and nonmetals are generally poor conductors of electricity.
* Neon is a noble gas, and noble gases are very poor conductors of electricity. They have a full outer shell of electrons, making it difficult for electrons to move freely.
In summary: Metals are the best conductors, and silver is a particularly good conductor among metals.