1. what is the oxidation number for the silver ion in tarnish?

An alpha particle is: a hydrogen atom a nucleus of helium two neutrons an electron

Is cutting your nails a physical or chemical change

Which of the following observations indicates that an atom has neutrons? some uncharged particles are scattered by a beryllium atom when it hits a gold foil. some uncharged particles bounce back from a gold foil when it is bombarded with alpha particles. a radiation consisting of uncharged particles is emitted when alpha particles strike beryllium atoms. a radiation which attracts electrons is produced when a beryllium atom is bombarded with alpha particles.