bio properties of water & basic chem vocab Flashcards
(20 cards)
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
cation
positively charged ion
covalent bond
chemical bond formed when two or more atoms
share one or more pairs of electrons
ionic bond
chemical bond formed through the electrical force
between oppositely charged ions
ion
atom that has gained or lost one or more electrons
anion
a negatively charged ion
