A sample of N2 gas (2.0 m mole) effused through a pinhole in 5.5 sec. It will take s for the same amount to CH4 to effuse unde the same conditions.

Which of these statements describes the size of an atom? a. an atom is larger than a sheet of aluminum foil. b. an atom is small but can be seen with just our eyes. c. an atom is the size of a plastic building block. d. an atom is tiny and cannot be seen without magnification.