2.1 Flashcards
negative charged particle
electron
positive charged particle
proton
no charge
neutron
found in the nucleus of an atom
protons and neutrons
pure substance that consists entirely of one type of atom
element
atoms of the same element that differ in the number of neutrons they contain
isotopes
number if protons in nucleus
atomic number
total number of protons and neutrons
atomic mass
positive and negative charged atoms
ions
when one or more electrons are transferred from one atom to another
ionic bond
when electrons travel between the nuclei of two or more atoms
covalent bond
result of covalent bonds
molecule
two or more atoms combined with a definite ratio
compound
to the left of a chemical reaction equation
reactants
to the left of a chemical reaction equation
product