Can i active my iphone to Tmobile?

So my Tmobile phone just broke, but i have an iphone i use as an ipod, its verizon though, is a iphone 4, but it doesn't have that little slide out sim card slot on the side, so would i be able to take it into the Tmobile store and have it activated for tmobile?

No you can't its for cmda networks only for example: sprint & Verizon. T-Mobile is only gsm.

If it doesn't have a slot for the SIM card, where would you put the SIM card?

Maybe the CDMA phone isn't equipped for the GSM network, which requires a SIM card.