He's on Omega.
Once you locate Mordin Solus in Omega, complete his quest in the Omega Slums and return to the Normandy. Mordin will allow you access to the science lab where you can review and upgrade skills, ship capabilities and equipment.
Thane, Garrus, Jacob, Miranda, Tali, Legion, Grunt, Jack, Mordin, Samara/Morinth. Those are the normal ones. If you get the downloadable ones you can also add Zaeed and Kasumi.
The Normandy Crash site is located on the planet Alchera (Amada system, Omega Nebula) in Mass Effect 2
If he died in Mass Effect 1 then he is not in Mass Effect 2. If he survived Mass Effect 1 he shows up in Mass Effect 2 but he can not be killed.
The squad members are: Miranda Lawson, Jacob Taylor, Grunt, Jack, Garrus Valkarian, Samara or her daughter Morinth, Mordin Solus, Liara T'soni, Tali'Zorah nar Rayya and Thane Krios. DLC adds Zaeed Massani and Kasumi Goto.
Mass Effect 2 is a 15.
No, Mass Effect 2 has a completely different weapon system.
mass effect 2 will be
The SSV Normandy in Mass Effect The Normandy SR-2 in Mass Effect 2 & 3
Mass Effect 2 is rated M for mature by the ESRB.
No mass effect 2 will only be on xbox 360 and PC
Mass Effect 2 is rated M for mature by the ESRB.