Subatomic Particles definitions Flashcards

Fundamental components of an atom, including neutrons, protons, and electrons.

Neutral particles in an atom's nucleus, slightly heavier than protons.

Positively charged particles in an atom's nucleus, similar in mass to neutrons.

Negatively charged particles with much less mass than protons or neutrons.

Central part of an atom containing protons and neutrons, accounting for most of its mass.

Unit of mass equal to 1/12 the mass of a carbon-12 atom, also known as Dalton.

Alternative name for atomic mass unit, named after John Dalton.

Unit of electric charge, used to express the actual charge of protons and electrons.

Mass of subatomic particles expressed in atomic mass units for comparison.

Charge of subatomic particles expressed as +1, 0, or -1 for protons, neutrons, and electrons.

Mass of subatomic particles measured in kilograms.

Charge of subatomic particles measured in coulombs.

Isotope of carbon used as a reference for defining atomic mass units.

Chemist known for his work on atomic theory, after whom the Dalton unit is named.