Electron Configuration and Methods

This video tutorial explains how to determine the electron configuration of elements using two methods: an energy level diagram and the periodic table. The tutorial provides a detailed example using iron, showing how electrons fill atomic orbitals from lowest to highest energy. It also demonstrates how to use the periodic table to find electron configurations, highlighting the similarities between iron and argon. The video aims to simplify the process of finding electron configurations and offers visual aids to enhance understanding.

What is the primary focus of the video tutorial?

• Studying the periodic table trends

• Learning about atomic mass

• Determining the electron configuration of elements

• Understanding chemical reactions

Which method involves using energy levels to determine electron configuration?

• Chemical reaction method

• Energy level method

• Periodic table method

• Atomic mass method

How many electrons can the 2p orbital hold?

• 2 electrons

• 4 electrons

• 8 electrons

• 6 electrons

What is the total number of electrons in an iron atom?

• 28 electrons

• 30 electrons

• 26 electrons

• 24 electrons

Which orbital is filled after the 3p orbital in the energy level method?

• 4s

• 4p

• 2p

• 3d

What is the final orbital filled in the electron configuration of iron using the energy level method?

• 3d

• 4s

• 3p

• 2p

Which element's electron configuration is used as a reference for iron in the periodic table method?

• Xenon

• Neon

• Krypton

• Argon

What is the electron configuration of iron using the periodic table method?

• [Kr] 4d10 5s2

• [Ne] 3s2 3p6

• [Xe] 4f14 5d10

• [Ar] 3d6 4s2

What is the advantage of using the periodic table method?

• It is easier to remember

• It is faster to calculate

• It requires less information

• It is more accurate

Which method is described as being easy to remember due to a visual aid?

• Atomic mass method

• Energy level method

• Periodic table method

• Chemical reaction method