Valence Electrons and Cesium Properties

The video tutorial explains two main methods to determine the number of valence electrons for cesium (Cs). The first method involves using the periodic table, where cesium is located in group one, indicating it has one valence electron. The second method involves examining the electron configuration, which ends in 6s1, confirming the presence of one valence electron. The tutorial concludes with a demonstration of drawing the Lewis structure for cesium, showing the single valence electron.

What are the two main methods to determine the number of valence electrons in cesium?

• Using the periodic table and atomic mass

• Using atomic mass and atomic radius

• Using the periodic table and electron configuration

• Using electron configuration and atomic radius

In which group of the periodic table is cesium located?

• Group 13

• Group 1

• Group 18

• Group 2

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

• Eight

• Three

• One

• Two

What is the atomic number of cesium?

• 55

• 37

• 19

• 87

Which part of the electron configuration indicates the number of valence electrons in cesium?

• 5p6

• 4f14

• 6s1

• 5d10

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

• 4d

• 5p

• 6s

• 5s

How would you represent cesium in a Lewis structure?

• Cs with no dots

• Cs with one dot

• Cs with two dots

• Cs with three dots