Iodine Electron Configuration Concepts

The video tutorial explains how to write the electron configuration for iodine using the periodic table. It starts by identifying iodine's atomic number and the number of protons and electrons. The tutorial then demonstrates using the periodic table's orbital blocks to determine the electron configuration, detailing each step and the number of electrons in each orbital. It also covers the condensed notation method, using krypton as the noble gas reference. The video concludes with notes on electron configuration conventions, such as the order of 4s and 3d orbitals.

What is the atomic number of iodine?

• 53

• 54

• 56

• 55

How many electrons does a neutral iodine atom have?

• 54

• 51

• 52

• 53

Which method is preferred for writing electron configurations using the periodic table?

• Using a diagram

• Using a calculator

• Using orbital blocks

• Using a chart

What is the maximum number of electrons that can be held in a p orbital?

• 8

• 6

• 2

• 4

After filling the 3d orbital, which orbital is filled next in iodine's electron configuration?

• 4p

• 5s

• 4d

• 5p

What is the condensed electron configuration notation for iodine?

• [Ar] 5s2 4d10 5p5

• [Ne] 5s2 4d10 5p5

• [Xe] 5s2 4d10 5p5

• [Kr] 5s2 4d10 5p5

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

• Argon

• Xenon

• Neon

• Krypton

Why might the 3d orbital be written before the 4s orbital in some notations?

• Because 3d has lower energy

• Because 4s is filled first

• Because 3d is closer to the nucleus

• Because 4s and 3d have similar energies

In which educational setting is the 4s orbital typically written before the 3d orbital?

• In professional chemistry

• In physics

• In high school

• In advanced research

What is the significance of the order in which orbitals are filled?

• It alters the element's color

• It determines the chemical properties

• It affects the atomic mass

• It changes the atomic number