Electron Configuration and Atomic Structure

This video tutorial explains how to write the electron configuration for radon (Rn), starting with its atomic number and using the periodic table to identify its position. The tutorial covers the use of the diagonal rule to determine the electron configuration and discusses the significance of energy levels and veence electrons. It also presents alternative ways to write the configuration.

What is the atomic number of Radon?

• 87

• 86

• 85

• 84

Where does the electron configuration of Radon end?

• 3s2

• 4d10

• 6p6

• 5p6

What is the purpose of the diagonal rule in electron configuration?

• To calculate the number of neutrons

• To find the atomic mass

• To determine the number of protons

• To help determine the order of filling electron orbitals

Which orbital can hold up to 10 electrons?

• p

• d

• f

• s

What is the maximum number of electrons that the f orbital can hold?

• 18

• 14

• 10

• 6

What is the electron configuration notation for the highest energy level in Radon?

• 6s2

• 3p6

• 5s2

• 4d10

How many electrons are in the 6p orbital for Radon?

• 8

• 6

• 4

• 2

Which of the following is a correct way to write electron configurations?

• In descending order of energy levels

• In ascending order of atomic number

• In order from 1 to the highest energy level

• In random order

What are valence electrons?

• Electrons in the innermost shell

• Electrons in the outermost shell

• Neutrons in the nucleus

• Protons in the nucleus

Why is it helpful to write electron configurations in order from 1 to the highest energy level?

• To easily identify the atomic mass

• To quickly find the number of protons

• To identify the valence electrons

• To determine the number of neutrons