Yes for 1 to 4Correct me if I'm wrong,
Front: Floor standing or Book shelf of your choice - 2 speakers
2) Center- 1 Speaker
3) Surround: Rear or Side - based on your sofa position. Side is normal.(2 Speakers)
4) Subwoofer (1 or 2) usually 1
5) Atmos: Top middle , you mean in the sealing and how many speakers ?
For 5) 2 speaker - Top middle left and right. -5.1.2. You need 7.2 (with atmos)receiver for this.
If you buy 9.2 (with atmos)receiver, you can do 5.1.4. Here 4 ceiling speakers.
Minimum plan for 5.1.2. Personally it made a good difference in my setup after adding Atmos. Mine is 5.1.2.
Check Dolby site for recommended setup. 5.1.2