Yes, you can take the full credit and you can use the foreign earned income credit on your resident portion of the dual status return.
As a dual-status alien, you generally can claim tax credits using the same rules that apply to resident aliens. There are certain restrictions that may apply. These restrictions are discussed here, along with a brief explanation of credits often claimed by individuals.
EIC
You cannot claim the education credits, the earned income credit, or the credit for the elderly or the disabled unless you are married and you choose to be treated as a resident for all of 2018 by filing a joint return with your spouse who is a U.S. citizen or resident, as discussed in chapter 1.
