bio properties of water & basic chem vocab Flashcards
Isotope
form of an element that has the same number of
protons but a different number of neutrons as another
element
electron
a subatomic particle with a single negative electrical
charge; found orbiting around the nucleus of an atom
element
substance made of only one type of atom that
cannot be broken down by chemical means
neutron
a subatomic particle with no electrical charge: found in the nucleus of an atom.
molecule
two or more atoms held together by covalent
bonds; not necessarily a compound
atomic number
number of protons in each atom of a particular element
atomic mass
number of protons and neutrons in an atomic nucleus
nucleus
an atoms central core, containing protons and neutrons.
atom
smallest basic unit of matter
proton
a subatomic particle with a single positive electrical
charge; found in the nucleus of an atom
compound
substance made of atoms of different elements that
are bonded together in a particular ratio
solvent
substance in which solutes dissolve and that is
present in greatest concentration in a solution
mixture
the combination of two or more substances whose
physical and chemical properties are not changed
(solutions, suspensions, and colloids).
solution
mixture that is consistent throughout; also called a
homogeneous mixture
solute
substance that dissolves in a solvent and is present
at a lower concentration than the solvent
