Valence Electrons and Argon Properties

The video tutorial explains how to determine the number of valence electrons in an argon atom. It presents two methods: using the periodic table and examining the electron configuration. Argon, located in group 18 of the periodic table, has eight valence electrons. The electron configuration method confirms this by identifying electrons in the highest energy level. The video concludes with a summary of these findings.

What is the primary focus of this video?

• Calculating the atomic mass of argon

• Understanding the chemical reactions of argon

• Determining the number of valence electrons in argon

• Finding the number of protons in argon

Which group does argon belong to in the periodic table?

• Group 2

• Group 18

• Group 8

• Group 1

How many valence electrons do elements in group 18 typically have?

• 8

• 6

• 2

• 4

What is the atomic number of argon?

• 8

• 18

• 10

• 20

How many electrons does a neutral argon atom have?

• 18

• 20

• 10

• 8

In which energy level are argon's valence electrons found?

• Third energy level

• Fourth energy level

• Second energy level

• First energy level

How many valence electrons does argon have according to its electron configuration?

• 4

• 8

• 2

• 6