Which has a larger electronegativity o or f?

Which type of bonding involves the complete transfer of a valence electron from a less electrogrative atom to a more electronegative one

Draw metallic bonding if two copper

3. how much energy in joules is required to evaporate .0005 kg of liquid ammonia to vapor at the same temperature? 4. how much energy ( in megajoules ) is given up by .75 kg of water at 0c when it freezes to form ice at 0c? 5. explain how heat works between and at critical temperatures?