Valence Electrons in AsCl3

The video tutorial explains the Lewis structure of AsCl3, starting with the calculation of valence electrons for arsenic and chlorine. Arsenic, being the least electronegative, is placed at the center with chlorine atoms surrounding it. The tutorial details the process of forming chemical bonds and ensuring each atom achieves a full octet. The final structure is verified with all 26 valence electrons used, and each atom having a complete octet. The video concludes with a confirmation of the correct Lewis structure for arsenic trichloride.

How many total valence electrons are present in the AsCl3 molecule?

• 18

• 24

• 32

• 26

Which atom is placed at the center of the AsCl3 molecule?

• Chlorine

• Hydrogen

• Arsenic

• Oxygen

How many valence electrons are used to form chemical bonds between the atoms in AsCl3?

• 12

• 10

• 8

• 6

What is the total number of valence electrons around each Chlorine atom in AsCl3?

• 6

• 7

• 8

• 5

What ensures that the Lewis structure of AsCl3 is correct?

• There are leftover valence electrons

• All atoms have full octets

• Only Arsenic has a full octet

• Only Chlorine atoms have full octets