What are the contributions of pauli exclusion principle in electronic configuration

Iknow #2 is d. i just need to know why

Aside from human impact, which of the following causes less water vapor production over a small area? (2 pderivartin

Predict the reactants of this chemical reaction. that is, fill in the left side of the chemical equation. be sure the equation you submit is balanced. (you can edit both sides of the equation to balance it, if you need to.) note: you are writing the molecular, and not the net ionic equation. > cacl2(aq) + h20(l)