kinetic molecular theory
all matter is made of tiny particles that are constantly moving
fundamental particle
take a macroscopic object and divide it repeatedly. Eventually you have a particle, which, if further divided is
the original substance. This smallest piece of the substance is called...
h2o molecule
the fundamental particle of water is what?
atom
the basic unit of a chemical element
molecule
two or more atoms (same or different) chemically bound
element
fundamental particle contains only one kind of atom
,compound
two or more different kinds of atoms chemically bound
the same
in a pure substance, all the fundamental particles are what?
solution
mixture that is uniform throughout
density
= mass / volume
atomic number
number of protons in the nucleus, defines the element
mass number
equal to the sum of protons and neutrons
, isotope
what results when you change the number of neutrons in an element?
atomic mass
weighted average of the masses of the isotopes of an element, gives the mass of one atom of the element
alkali metals
group 1 on periodic table
alkali earth
group 2 on periodic table
halogens
group 17 on periodic table
properties of metals
good conductors of heat and electricity, malleable, ductile, often shiny, tend to lose electrons in chemical cha
all matter is made of tiny particles that are constantly moving
fundamental particle
take a macroscopic object and divide it repeatedly. Eventually you have a particle, which, if further divided is
the original substance. This smallest piece of the substance is called...
h2o molecule
the fundamental particle of water is what?
atom
the basic unit of a chemical element
molecule
two or more atoms (same or different) chemically bound
element
fundamental particle contains only one kind of atom
,compound
two or more different kinds of atoms chemically bound
the same
in a pure substance, all the fundamental particles are what?
solution
mixture that is uniform throughout
density
= mass / volume
atomic number
number of protons in the nucleus, defines the element
mass number
equal to the sum of protons and neutrons
, isotope
what results when you change the number of neutrons in an element?
atomic mass
weighted average of the masses of the isotopes of an element, gives the mass of one atom of the element
alkali metals
group 1 on periodic table
alkali earth
group 2 on periodic table
halogens
group 17 on periodic table
properties of metals
good conductors of heat and electricity, malleable, ductile, often shiny, tend to lose electrons in chemical cha
