VSEPR REVIEW

In covalent bonds, electrons are ___________.

• transferred

• gained

• lost

• shared

 A lone pair is defined as

• A pair of bonding electrons

• One non-bonding electron

• A pair of non-bonding electrons on the central atom

• A pair of electrons

Pairs of electrons that are not used between bonding atoms are called-

• single pairs

• bonding pairs

• adjacent pairs

• lone pairs

What is the VSEPR theory used to predict?

• Bond Strength
• Polarity
• Molecular Shape
• Electronegativity

Tags

NGSS.HS-PS2-6

According to VSEPR, molecules adjust their shapes to keep which of the following as far away as possible?

• Pairs of valence electrons
• Inner shell electrons
• Mobile Electrons
• Electrons closest to the nucleus

Which shapes are altered by unshared pairs of electrons? 

• Bent and Pyramidal
• Trigonal Planar and Bent
• Tetrahedram and Bipyramidal
• Pyramidal and Linear

How many lone pairs of electrons will a trigonal pyramid molecule have?

• 1

• 2

• 3

• 4

Match the following formulas to the shape it will make:

• trigonal planar

• BBr₃

• linear

• HCl

• trigonal pyramid

• PBr₃

• bent

• H₂S

• tetrahedral

• CCl₄

Draw the Lewis Dot Diagram for SiH₄:

Tags

NGSS.HS-PS1-2

The only difference between trigonal planar and trigonal pyramid is that the pyramid has ​ (a)   .

• a lone pair
• dipole
• 2 lone pairs
• 4 bonding atoms
• no lone pairs
• 2 bonding atoms