Chapter 8.1, Problem 5PP

Interpretation Introduction

Interpretation:

The Lewis dot diagram for SiH₄ needs to be determined.

Concept introduction:

Lewis structure is shown by each atom in the molecule using the chemical symbol with the electron. The bond is formed by sharing of electron between the atoms and excess electrons are shown as lone pairs.

Answer to Problem 5PP

After sharing the electron between $Silicon$ and $Hydrogen$, the stable valence shells configuration can be obtained.

Explanation of Solution

Lewis structure of $Si{H}_4.$ :

First write the electron configuration $Silicon\left(Si\right)$ and $Hydrogen\left(H\right).$ as follows:

$Si\to 1s^{2}2s^{2}2p^{6}3s^{2}3p^9$

$H\to 1s^1$

$Silicon\left(Si\right)$ and $Hydrogen\left(H\right)$ has $4$ electrons and $1$ electron in their outer most shell respectively.

For the valence shell configuration or stable structure formation $Si$ requires $4$ electrons and $Hydrogen$ requires $1$ electron.

There will be no lone pair on Si and H atoms. The Lewis dot structure is represented as follows:

After sharing the electron between $Silicon$ and $Hydrogen$ gets the stable valence shell electronic configurations.

Conclusion

The valence shell configuration can be achieved by sharing the electrons between the atoms.