Chlorine Valence Electrons and Structure

The video tutorial explains two main methods to determine the number of valence electrons for chlorine. The first method involves using the periodic table, where chlorine is found in group 17, indicating it has seven valence electrons. The second method uses the electron configuration of chlorine, identifying the highest energy level to find the same number of valence electrons. The video also demonstrates how to draw the Lewis structure for chlorine, showing seven valence electrons around the chlorine atom. Dr. B concludes the tutorial by summarizing the methods discussed.

What is the first method mentioned for finding the number of valence electrons in chlorine?

• Using the atomic number

• Using the periodic table

• Using the molecular weight

• Using the chemical formula

Which group in the periodic table does chlorine belong to?

• Group 1

• Group 7A

• Group 13

• Group 18

How many valence electrons does chlorine have according to the periodic table?

• Five

• Six

• Eight

• Seven

What is the highest energy level in the electron configuration of chlorine?

• Third energy level

• Second energy level

• Fourth energy level

• First energy level

How many valence electrons are found in the third energy level of chlorine?

• Three

• Seven

• Two

• Five

What is the correct Lewis structure representation for chlorine?

• CL with 5 dots around it

• CL with 6 dots around it

• CL with 7 dots around it

• CL with 8 dots around it

What is the conclusion about chlorine's valence electrons?

• Chlorine has eight valence electrons

• Chlorine has seven valence electrons

• Chlorine has six valence electrons

• Chlorine has five valence electrons