2F.5 Homework

[Haley Dveirin 1E]

In the textbook the question 2F.5 asks: state the hybridization of the first atom in each of the following molecules and ions:
a) BeCl2 b) BH3 c) BH4-

Can someone explain how you solve these?

[A Raab 1K]

For each one, you would draw the Lewis structure and see the regions of electron density on each central atom. Then, in accordance with how many regions there are, you can assign the hybridization. For example, BeCl2 has 2 bonds from Be to Cl, so the hybridization would be sp.