Ions that are made of more than one atom are examples of
a. polyatomic ions.
b. negative ions.
c. positive ions.
d. neutral ions.

Agas at 155 kpa and standard temperature has an initial volume of 1.00 l. the pressure of the gas rises to 500 kpa as the temperature also rises to 135°c. what is the new volume? 2.16 l 0.463 l 0.207 l 4.82 l

Each pair of clay balls represents to planetesimals if each plane test molluscum pound of the same material and is separated by the same distance which pair experiences the greatest gravitational attraction

Which other elements contain the same number of outer electrons as sodium