What are the advantages of using structural composite lumber rather than solid lumber?

Advantages of using structural composite lumber include its highly stable material, in that it's much less likely to warp or split, its ability to sustain heavier loads, and its wide range of different physical applications. Solid lumber does not hold any of these properties, and generally is more likely to fail.

Sorry i dont understand the question can you rephase it?

Neither model is able to show the reactivity of potassium.