CHM 219 TEST PREP QUESTIONS AND
ANSWERS VERIFIED STUDY SHEET
●● fundamental particle
Answer: take a macroscopic object and divide it repeatedly. Eventually
you have a particle, which, if further divided is no longer the original
substance. This smallest piece of the substance is called...
●● h2o molecule
Answer: the fundamental particle of water is what?
●● atom
Answer: the basic unit of a chemical element
●● molecule
Answer: two or more atoms (same or different) chemically bound
●● element
Answer: fundamental particle contains only one kind of atom
●● compound
Answer: two or more different kinds of atoms chemically bound
,●● the same
Answer: in a pure substance, all the fundamental particles are what?
●● solution
Answer: mixture that is uniform throughout
●● density
Answer: = mass / volume
●● atomic number
Answer: number of protons in the nucleus, defines the element
●● mass number
Answer: equal to the sum of protons and neutrons
●● isotope
Answer: what results when you change the number of neutrons in an
element?
●● atomic mass
Answer: weighted average of the masses of the isotopes of an element,
gives the mass of one atom of the element
, ●● alkali metals
Answer: group 1 on periodic table
●● alkali earth
Answer: group 2 on periodic table
●● halogens
Answer: group 17 on periodic table
●● properties of metals
Answer: good conductors of heat and electricity, malleable, ductile,
often shiny, tend to lose electrons in chemical change
●● properties of non metals
Answer: poor conductors of heat and electricity, not ductile, not
malleable, gain electrons in chemical change
●● avagadros number
Answer: 6.022 x 10^23
●● ionic bond
Answer: bond between a nonmetal and a metal
ANSWERS VERIFIED STUDY SHEET
●● fundamental particle
Answer: take a macroscopic object and divide it repeatedly. Eventually
you have a particle, which, if further divided is no longer the original
substance. This smallest piece of the substance is called...
●● h2o molecule
Answer: the fundamental particle of water is what?
●● atom
Answer: the basic unit of a chemical element
●● molecule
Answer: two or more atoms (same or different) chemically bound
●● element
Answer: fundamental particle contains only one kind of atom
●● compound
Answer: two or more different kinds of atoms chemically bound
,●● the same
Answer: in a pure substance, all the fundamental particles are what?
●● solution
Answer: mixture that is uniform throughout
●● density
Answer: = mass / volume
●● atomic number
Answer: number of protons in the nucleus, defines the element
●● mass number
Answer: equal to the sum of protons and neutrons
●● isotope
Answer: what results when you change the number of neutrons in an
element?
●● atomic mass
Answer: weighted average of the masses of the isotopes of an element,
gives the mass of one atom of the element
, ●● alkali metals
Answer: group 1 on periodic table
●● alkali earth
Answer: group 2 on periodic table
●● halogens
Answer: group 17 on periodic table
●● properties of metals
Answer: good conductors of heat and electricity, malleable, ductile,
often shiny, tend to lose electrons in chemical change
●● properties of non metals
Answer: poor conductors of heat and electricity, not ductile, not
malleable, gain electrons in chemical change
●● avagadros number
Answer: 6.022 x 10^23
●● ionic bond
Answer: bond between a nonmetal and a metal
