Geometry Angles

What is the main idea behind VSEPR theory?

• Electrons and nuclei attract each other.

• Electron pairs repel each other to maximize the distance between them.

• Electrons move in predictable orbits.

• Bonding pairs of electrons are the most stable.

Answer explanation

The main idea behind VSEPR theory is that electron pairs repel each other to maximize the distance between them.

The main idea behind VSEPR theory is that electron pairs ​ (a)   each other to ​ (b)   the distance between them.

• minimize

• attract

• repel

• maximize

Answer explanation

According to VSEPR theory, electron pairs repel each other to maximize the distance between them.

Click on all of the electron domains around the central (middle) atom in this structure

Tags

NGSS.HS-PS1-2

Reorder the following molecular geometries so that the smallest bond angle is on the left and the largest bond angle is on the right

• Bent

• Trigonal pyramidal

• Tetrahydral

• Trigonal Planar

• Linear

Click on the atom in the structure that would have a trigonal planar molecular geometry

Click on the atom in the structure that would have a bent molecular geometry

Click on all of the atoms that would have a linear molecular geometry

Complete these sentence Based on the picture on the left the central atom here has ​ (a)   electron domains. ​ (b)   of the domains is a lone pair, and ​ (c)   of the domains are bonding​

• four

• one

• three

• two

• fourteen

• six

Answer explanation

The central atom has four electron domains, one of which is a lone pair, and three of the domains are bonding. Therefore, the correct choices are four, one, and three.

A molecule with two lone pairs on the central atom and two attached atoms would have the same molecular geometry as a molecule with four atoms attached to the central atom?

• True

• False

Answer explanation

False, because a molecule with two lone pairs on the central atom and two attached atoms would have a different molecular geometry than a molecule with four atoms attached to the central atom.

What is the molecular geometry of the H₂O molecule? Type the name of the geometry