IndietroRutherford Gold Foil Experiment definitions
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1/15IndietroSkip to main contentIndietroNucleus
A dense, positively charged center within an atom containing most of its mass, composed of protons and neutrons. Alpha Particle
A radioactive particle made of two protons and two neutrons, carrying a 2+ charge, often symbolized as 4 over 2 Helium 2+. Gold Foil
A thin metallic sheet used as a target for bombarding particles to probe atomic structure in a landmark experiment. Detecting Screen
A device surrounding the target material that reveals the paths of incoming particles by registering their impacts. Radioactive Element
A substance, such as iridium, that emits energetic particles from its unstable atomic nuclei. Lead Box
A protective container with an opening, used to direct and shield the emission of radioactive particles. Proton
A positively charged subatomic particle found within the atomic nucleus, contributing to atomic mass. Neutron
A neutral subatomic particle located in the nucleus, adding to atomic mass but not affecting charge. Electron
A negatively charged subatomic particle forming a cloud around the nucleus, balancing atomic charge. Nuclear Model
A depiction of atomic structure with a dense central core surrounded by a cloud of electrons. Plum Pudding Model
An outdated atomic theory proposing electrons embedded in a diffuse positive charge, later disproven. Atomic Number
A value representing the number of protons in an atom, determining its elemental identity. Mass Number
A sum of protons and neutrons in an atom, indicating its total nuclear particles. Deflection
A change in the path of a particle due to interaction with a concentrated positive center in an atom. Geiger Marsden Experiment
An alternative name for the gold foil experiment, highlighting the contributions of Rutherford's assistants.
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