Ionization Energy Concepts and Problems

The video tutorial explores ionization energy, focusing on ordering processes by increasing ionization energy. It compares the first ionization energies of thallium and aluminum, explaining why thallium's is lower due to its larger atomic size. The tutorial then examines aluminum's successive ionization energies, highlighting the increasing difficulty of removing electrons as positive charge increases. Finally, it contrasts aluminum's third ionization energy with sodium's second, emphasizing the stability of noble gas configurations and the challenges of moving away from them.

What is the main task in the ionization energy practice problem?

• To determine the electron configuration of each element

• To find the atomic number of each element

• To place the processes in order of increasing ionization energy

• To calculate the ionization energy of each element

Why is the first ionization energy of thallium less than that of aluminum?

• Thallium has fewer protons than aluminum

• Thallium is a smaller atom than aluminum

• Thallium's outer electron is closer to the nucleus

• Thallium has more electron shells than aluminum

What happens to the ionization energy as more electrons are removed from an atom?

• It remains the same

• It fluctuates randomly

• It increases

• It decreases

What is the electron configuration of aluminum 3+?

• Same as sodium

• Same as neon

• Same as fluorine

• Same as argon

Why is the second ionization energy of sodium much larger than the third ionization energy of aluminum?

• Sodium's second ionization involves losing a stable noble gas configuration

• Sodium has more protons than aluminum

• Sodium is a larger atom

• Aluminum's third ionization involves gaining an electron

What is the final order of ionization energies from least to greatest?

• IE1 Thallium < IE1 Aluminum < IE3 Aluminum < IE2 Sodium

• IE1 Aluminum < IE1 Thallium < IE2 Sodium < IE3 Aluminum

• IE2 Sodium < IE3 Aluminum < IE1 Aluminum < IE1 Thallium

• IE3 Aluminum < IE2 Sodium < IE1 Thallium < IE1 Aluminum