That my friend is your starter

^^^ Thats what it looks like to me.

if the battery is junk the starter will click or chatter. replace the battery first. since you can jump the car it doesn't sound like the starter is bad

yea thanks everyone. i will replace the battery first. and my uncle told me that was the fuel pump... and i was like huh... thats the starter... so i guess its the starter

I suggest you also check the starter magnetic coil, sometime when the starter can't clank is not only due to battery failed, it may also due to

1) starter magnetic coil failed. When magnetic coil failed it will not engage the starter shaft to drive start engine.
2) starter cable inner corrosion and cause current resistance.
3) Check your battery negative cable did the ground connected firmly or it corrosion.

The only responsible of a alternator is just to generate electricity to support all your car electricla appliance and recharge your battery. it may not the ideal to check your alternator.

thanks everyone, my car started now..
new battery was all i needed...