Does Apple pencil 2 work for iPad AIR 3rd generation?

Hello! The iPad Air 3rd generation only supports the 1st generation Apple Pencil. A full list of specs for the iPad Air 3rd generation can be found here: https://support.apple.com/kb/SP787?locale=en_US. If you would like to know what Apple devices support use of the Apple Pencil 2nd generation, you can refer to the compatibility information on the product page here: https://www.apple.com/shop/product/MU8F2AM/A/apple-pencil-2nd-generation.

No.

You need the original 1st gen Pencil with the chrome, silver top band/cap with Lightning connector protective magnetic cap.