ch 17 science
Terms in this set (14)
the smallest particle of an element that still retains the properties of the element.
positively charged center of an atom that contains protons and neutrons and is surrounded by a cloud of electrons.
particle, composed of quarks, inside the nucleus of an atom that has a charge of 1+.
neutral particle, composed of quarks, inside the nucleus of an atom.
particles surrounding the center of an atom that have a charge of -1.
particles of matter that make up protons and neutrons.
area around the nucleus of an atom where the atom's electrons are most likely to be found.
number of protons in an atom's nucleus.
atoms of the same element that have different numbers of neutrons.
average atomic mass
weighted-average mass of the mixture of an element's isotopes.
organized list of all known elements that are arranged by increasing atomic number and by changes in chemical and physical properties.
vertical column in the periodic table.
electron dot diagram
uses the symbol for an element and dots representing the number of electrons in the element's outer energy level.
horizontal row in the periodic table.
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