Describe what happens when a gas changes to a liquid a. it loses energy and the particles begin to move slower and get farther apart b. it gains energy and the particles begin to move faster and get closer together c. it loses energy and the particles begin to move slower and get closer together d. it gains energy and the particles being to move faster and get farther apart

__can be defined as which velocity changes

1)each group 16 element has how many valence electrons? ( )4 ( )6 ( )8 ( )16 2)how many dots appear in the dot structure for calcium ion, ca2+? ( )zero ( )one ( )two ( )eight 3) which of the following atoms forms a cation to obtain an octet of outer shell electrons? ( )magnesium ( )oxygen ( )fluorine ( )helium 4) an al3+ ion contains 13 protons and 10 electrons. ( )true ( )false 5) valence and non-valence electrons are represented in lewis dot structures. ( )true ( )false

Geothermal energy for industrial use is available almost anywhere. a.true b.false