Mongoose skateboards heavier?

Are they heavier because I was at my friends.. he doesn't skateboard at all and he has an element board from his skater friend. When I went there I did an ollie on his board and I went so much higher than on my mongoose and I just about landed a kickflip ( landed primo and slipped ). I've only been skating for 2 weeks so I don't know much about boards and what ones are good but do good boards give you better ollies? are they lighter? THANKS