Francium Electron Configuration Concepts

This video tutorial explains how to write the electron configuration for francium and its ion, Fr+. It begins with an introduction to the periodic table, highlighting the blocks and francium's position. The diagonal rule is used to determine the electron configuration, ensuring the total number of electrons matches francium's atomic number. The video also covers condensed notation and how to adjust the configuration for the Fr+ ion by removing an electron.

What is the position of francium on the periodic table?

• Seventh period, Group 1

• Seventh period, Group 2

• Sixth period, Group 1

• Sixth period, Group 2

What is the atomic number of francium?

• 89

• 86

• 88

• 87

Which rule helps in determining the order of filling electron orbitals?

• Diagonal Rule

• Periodic Rule

• Electron Rule

• Orbital Rule

How many electrons does francium have in its neutral state?

• 89

• 87

• 88

• 86

What is the electron configuration ending for francium?

• 6p1

• 5s1

• 7s1

• 6s1

What is the condensed notation for francium's electron configuration?

• [Rn] 7s1

• [Rn] 6p1

• [Xe] 6s1

• [Kr] 5s1

How is the electron configuration of Fr+ different from neutral francium?

• It gains one electron

• It gains two electrons

• It loses two electrons

• It loses one electron

What happens to the last electron in the configuration of Fr+?

• It is removed from the 6p orbital

• It is added to the 6p orbital

• It is removed from the 7s orbital

• It is added to the 7s orbital

Which noble gas is used in the condensed notation for francium?

• Xe

• Rn

• Kr

• Ar

What is a common variation in writing electron configurations?

• Writing 4s before 3d

• Writing 4d before 5s

• Writing 3d before 4s

• Writing 5s before 4d