Atoms
smallest unit of an element that still has the chemical properties of the element
atom
determines the element of the atom
atomic number
how many protons an atom has; element of the atom
atomic number tells
forms of an element with different numbers of neutrons
isotopes
number of neutrons plus protons
mass number
the number of electrons that can be held in the second orbit
eight
the part of the atom that carries an electric charge
electron
electrons are found in the
electron cloud
number of protons equals the amount of ________ and ______
electrons; atomic number
the part of the atom that carries a positive charge
proton
the number of electrons that can be held in the first orbit
two
center of atom that contains protons and neutrons
nucleus
neutrons are found in the
nucleus
protons are found in the
nucleus
the part of the atom that carries no electric charge
nucleus