Ionization Energy Concepts and Trends

This tutorial covers ionization energies, explaining the energy needed to remove electrons from atoms. It discusses the concept of successive ionization energies and how they increase with each electron removed. The video explores periodic table trends, showing how ionization energy increases from bottom to top and left to right. An example is provided to arrange elements by ionization energy. The tutorial also delves into aluminum's ionization energies, highlighting the sharp increase when removing inner shell electrons. The video concludes with a summary of key points.

What is the energy required to remove an electron from a neutral atom called?

• Ionization energy

• Electronegativity

• Electron affinity

• Atomic radius

How does ionization energy change as you move from the bottom to the top of the periodic table?

• It decreases

• It fluctuates

• It increases

• It remains constant

What happens to ionization energy as you move from left to right across a period?

• It decreases

• It remains constant

• It fluctuates

• It increases

Which element has the highest first ionization energy among francium, oxygen, calcium, and fluorine?

• Francium

• Calcium

• Oxygen

• Fluorine

Which of the following elements is likely to have the lowest ionization energy?

• Helium

• Lithium

• Neon

• Fluorine

In the context of ionization energies, what is significant about the removal of an electron from an inner shell?

• It requires less energy

• It has no effect on ionization energy

• It decreases the atom's stability

• It results in a sharp increase in ionization energy

What is the electron configuration of an aluminum ion with a +3 charge?

• 1s2 2s2 2p6

• 1s2 2s2 2p6 3s1

• 1s2 2s2 2p6 3s2

• 1s2 2s2 2p6 3s2 3p1

Between which ionization energies of aluminum is there a sharp increase?

• Fourth and fifth

• Third and fourth

• Second and third

• First and second

Why do atoms tend to form ions with a stable noble gas configuration?

• To increase their atomic radius

• To achieve a lower energy state

• To decrease their ionization energy

• To become more reactive

What is the significance of the octet rule in the context of ionization energies?

• It explains why atoms form ions with a full outer shell

• It predicts the color of ions

• It determines the atomic mass of elements

• It describes the shape of electron orbitals