key definions Flashcards
what are isotopes?
atoms of the same element with different numbers of neutrons
definition of ions
atoms which have an overall charge
define ionic compound
compounds made up of ions that form charged particles when an atom (or group of atoms) gains or loses electrons
anode means
loss of electrons
cathode means
gain of eletrons
cations are..
positively charged ions
anions are…
negativity charged ions
a covalent bond is…
a bond formed between two atoms, where electrons are shared.
what are elements held together by?
covalent bonds
an ionic bond is…
a bond formed between two atoms where an electron is transferred from one atom to the other
an ion is…
electrically charged particles, formed when an atom or molecule gains or loses eletrons
aqueous (aq) means
dissolves in water to form a solution
