Valence Electrons and Iodine

The video tutorial explains two main methods to determine the number of valence electrons for iodine. The first method involves using the periodic table, where iodine is found in group 17, indicating it has seven valence electrons. The second method uses electron configuration, confirming the same number of valence electrons. Additionally, the video demonstrates how to draw the Lewis structure for iodine, placing the seven valence electrons around the element symbol.

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

• Counting the protons

• Observing the periodic table pattern

• Using the atomic number

• Measuring the atomic mass

Which group in the periodic table contains elements with seven valence electrons?

• Group 2

• Group 1

• Group 18

• Group 17

How many valence electrons do elements in Group 13 have?

• 3

• 7

• 5

• 8

What is the second method to determine the number of valence electrons in iodine?

• Counting the neutrons

• Observing the color of iodine

• Using the electron configuration

• Checking the atomic mass

In the electron configuration method, which energy level is considered for iodine?

• Fourth energy level

• Third energy level

• Sixth energy level

• Fifth energy level

How many valence electrons are found in the highest energy level of iodine?

• Six

• Eight

• Five

• Seven

What is the purpose of writing the Lewis structure for iodine?

• To visualize the valence electrons

• To find the atomic number

• To determine the atomic mass

• To calculate the number of protons

What do both the periodic table pattern and electron configuration reveal about iodine?

• It has five valence electrons

• It has six valence electrons

• It has seven valence electrons

• It has eight valence electrons