How do I figure out the size of an Earth-like world's layers and composition of elements

After getting help from the members of this site with Worldbuilding an Earth-like world around an F-Type Star, I have another question. The Planet's radius is 90% of Earth's. The Planet's rotation is 11 hours and 50 Minutes. It's density is 120% of Earth. How do I figure out what elements are within the planet and at what percentages and within what layers?

It did not have a Mars sized body impact with the planet to form a moon, so the orbit is not stabilized and material was not added to it, which I have read is a major source of the Earth's layers.

I know it should have more heavy elements so such a density can compensate for the smaller radius, what I do not know is how the lack of a lunar event would effect its layers or how this difference in density affects it. How would I figure this out and what options do I have? This seems like two questions but I feel like I cannot have this question answered without at least mentioning the lack of a moon.

posted about 6 years ago

BlindingLight‭

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