Barium (ba) is in group 2. recall that atoms in group 1 lose one electron to form ions with a 1+ charge. what type of ion does barium form?

Which process does not require the presence of a physical substance in order to transfer heat? air in the atmosphere is heated by the ground. this warm air then rises, and cooler air falls. this is an example of what type of process? how is conduction different from radiation?

If an area has high air pressure and low humidity, what type of weather will it most likely have? plz !

Which statement is true about this reaction? 14n+1h 15o it is a practical source of energy on earth. it occurs only outside the solar system. its product is heavier than each of its reactants. it shows the critical mass of an element.