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8th atoms vocab

8th grade atom vocab

DefinitionTerm
The mass of an atom expressed in amu (automic mass units) Atomic Mass
The sum of the number of protons and neutrons in the nucleus of an atom Mass Number
An atom that has the same number of protons as other atoms of the same element, but has a different number of neutrons Isotope
A subatomic particle with a negative charge Electron
An atom's central region, which is composed of neutrons and protons Nucleus
Region around the nucleus of an atom where electrons are likely to be found Electron Cloud
The smallest unit of an element that maintains the properties of the element Atom
The number of protons in the nucleus of an atom Atomic Number
A subatomic particle that has no charge and is found in the nucleus of an atom Neutron
A unit of mass that describes the mass of an atom or molecule AMU (atomic mass unit)
A subatomic particle that has a positive charge and is located in the nucleus of an atom Proton
An atom with an electric charge due to loss or gain of one or more elctrons Ion
Created by: 200348345