The bond angle of H2 X (where X is a VIth group element) as one goes down the group (a) Charges

step 1 The point angle of H2X where X is the sixth group element as one goes down the group. Options ar

The bond angle of H2 X (where X is a VIth group element) as...

Labs

Want to see this concept in action?

NEW

Explore this concept interactively to see how it behaves as you change inputs.

View Labs

Key Concepts

Atomic and Periodic Trends

As one moves down a group in the periodic table, the central atom’s size increases and its electronegativity decreases. This leads to a more diffuse electron cloud, which affects the extent of the repulsive interactions. In the case of H2X molecules, these changes result in a gradual decrease in the bond angle as the central atom becomes larger.

VSEPR Theory

Valence Shell Electron Pair Repulsion (VSEPR) theory is a model used to predict the geometry of molecules based on the repulsion between electron pairs around a central atom. This theory takes into account both bonding pairs and lone pairs of electrons, and it explains how the spatial arrangement of these pairs influences the bond angles observed in a molecule.

Lone Pair Repulsion

The presence of lone pairs on the central atom results in increased repulsion compared to bonding pairs, often leading to smaller bond angles than the ideal geometry. As the number of lone pairs increases, the repulsive interactions become stronger, thereby compressing the bond angles between the bonding pairs.

Transcript

Please give Ace some feedback