Lewis Structures and Molecular Geometry of SnCl3-

This video tutorial explains how to write the Lewis structure for SnCl3-. It begins by counting the valence electrons for tin and chlorine, considering the negative charge. The tutorial then guides viewers through constructing the Lewis structure, placing the least electronegative element in the center and completing the octets. Finally, it discusses the molecular geometry of SnCl3- using the AXE notation, identifying it as trigonal pyramidal.

What is the total number of valence electrons in SnCl3-?

• 25

• 24

• 27

• 26

Which element is placed at the center of the Lewis structure for SnCl3-?

• Chlorine

• Tin

• Oxygen

• Hydrogen

How many valence electrons are used to form bonds between tin and chlorine in SnCl3-?

• 8

• 10

• 4

• 6

After completing the octets, how many valence electrons does each chlorine atom have in SnCl3-?

• 9

• 7

• 6

• 8

Why should brackets be placed around the Lewis structure of SnCl3-?

• To emphasize the bonds

• To indicate it is a molecule

• To show it is an ion

• To highlight the central atom

What is the steric number of the central tin atom in SnCl3-?

• 5

• 4

• 3

• 2

What is the molecular geometry of SnCl3- according to the steric number?

• Tetrahedral

• Trigonal pyramidal

• Trigonal planar

• Linear

In AXE notation, what does 'E' represent for SnCl3-?

• Central atom

• Bonding pairs

• Lone pairs

• Electrons

What is the AXE notation for SnCl3-?

• AX4E0

• AX2E1

• AX3E1

• AX3E2

Which of the following best describes the molecular geometry of SnCl3- using AXE notation?

• Trigonal pyramidal

• Bent

• Square planar

• Linear