Question

Write the formulas for the analogous species of the elements of period 3; would you expect them to have the same hybridization at the central atom?

Answer 1

Answer:

$AlH^-_4, SiH_4 \text{ and}\ PH^+_4$

Explanation:

The elements belonging to third period which corresponds to B,C and N are Al, Si and P. All these elements in the third period tries to combine with four of hydrogen atoms and form an analogous species.

The formulae of these species are given as $AlH^-_4, SiH_4 \text{ and}\ PH^+_4$

All these species have a central atom which has four electron domain and the geometry of the electron domain is tetrahedral. The hybridization which corresponds to the geometry of tetrahedral electron domain is $sp^3$ .

So $AlH^-_4, SiH_4 \text{ and}\ PH^+_4$ have the same hybridization at the central atom such as $BH^-_4, CH_4 \text{ and}\ NH^+_4$ .