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chaptor 17


atom the smallest particle of an element that still retains the properties of the element
atomic number number of protons in an atoms nucleus
average atomic mass weighted average mass of the mixtures of an element isotopes
electron surrounding the center of an atom that have a charge
electron cloud area around the nucleus of an atom where the atom electron are most likely to be found
electron dot diagram uses the symbol for an element and dots representing the number of electrons in the element outer energy level
group vertical column in the periodic table
isotope atoms of the same element that have different numbers of neutrons
mass number sum of the number of protons and neutrons in an atoms nucleus
neutron neutral particle composed of quarks inside the nucleus of an atom
nucleus positively charged center of an atom that contains protons and neutrons and is surrounded by a cloud of electrons
period horizontal row in the periodic table the amount of time it takes one wavelength to pass a fixed point is expressed in seconds
periodic table organized list of all known elements that are arrange by increasing atomic numbers and by changes in chemical and physical properties
proton particle compose of quarks inside the nucleus of an atom that has a charge
quark particles of matter that make up protons and neutrons
Created by: 100002024685793