Lewis and VSEPR Quiz

According to the octet rule most elements need _______ valence electrons.

• 2
• 8
• 6
• 18

Tags

NGSS.HS-PS1-1

Which of the following is the correct Lewis dot structure for the molecule fluorine (F₂)?

• A
• B
• C
• D

Tags

NGSS.MS-PS1-1

What is the correct structure for BF₃?

• Option A.
• Option B. 
• Option C.
• Option D.

Tags

NGSS.MS-PS1-1

What is the name of the molecular geometry for this Lewis Structure?

• trigonal planar
• trigonal pyramidal
• tetrahedral
• bent

In the correct Lewis structure for water, how many unshared pairs of electrons will oxygen have?

• 1
• 4
• 3
• 2

What is the shape and polarity of CO₂?

• linear and polar
• linear and nonpolar
• bent and polar
• bent and nonpolar

What is the shape? Hint: Draw the Lewis dot structure for NH3.

• tetrahedral

• trigonal pyramidal

• trigonal planar

• bent

SiCl₄ has what shape?

• trigonal planar

• pyramidal

• tetrahedral

• trigonal pyramidal

VSEPR stands for ________ theory.

• Valence Structure of Electron Pyramids and Regression
• Varied Structures of Electrons Paired and Replaced
• Varied Shell Energy of Protons and Radiation
• Valence Shell Electron Pair Repulsion

 A lone pair is defined as

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