How are elements arranged in the periodic table?
a.
by atomic mass
b.
alphabetically
c.
by atomic number
d.
by the date of discovery

Harvey kept a balloon with a volume of 348 milliliters at 25.0˚c inside a freezer for a night.  when he took it out, its new volume was 322 milliliters, but its pressure was the same.  if the final temperature of the balloon is the same as the freezer’s, what is the temperature of the freezer? the temperature of the freezer is  kelvins.

1. list three scientific reasons cockroaches may fly.

The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false