Ionization Energy Trends in the Periodic Table

The video tutorial explains the concept of ions, focusing on cations and anions, and introduces ionization energy as the energy required to remove an electron. It explores trends in ionization energy across the periodic table, highlighting the differences between alkali metals and noble gases. The tutorial also analyzes a chart showing ionization energy trends, emphasizing the impact of atomic size and electron configuration.

What is an ion?

• An atom or molecule with a neutral charge

• An atom or molecule with an unequal number of protons and electrons

• An atom or molecule with equal protons and neutrons

• An atom or molecule with more neutrons than protons

What do we call a positively charged ion?

• Anion

• Cation

• Electron

• Neutron

What is the term for the energy required to remove an electron from an atom?

• Electronegativity

• Atomic radius

• Ionization energy

• Electron affinity

Why do alkali metals have low ionization energy?

• They have a high number of protons

• They easily lose an electron to achieve a noble gas configuration

• They are very stable

• They have a full outer shell

What happens to ionization energy as you move from left to right across the periodic table?

• It fluctuates randomly

• It increases

• It remains the same

• It decreases

How does ionization energy change as you move down a group in the periodic table?

• It fluctuates

• It remains constant

• It decreases

• It increases

Which element has a higher ionization energy, Neon or Xenon?

• It depends on the temperature

• Xenon

• Neon

• Both have the same ionization energy

Why do noble gases have high ionization energies?

• They are very reactive

• They have a low number of electrons

• They have a high number of protons

• They have a full outer shell and are very stable

What is the general trend of ionization energy from the bottom left to the top right of the periodic table?

• It remains the same

• It increases

• It decreases

• It fluctuates

Which element would have a lower ionization energy, Lithium or Cesium?

• Both have the same ionization energy

• It depends on the isotope

• Cesium

• Lithium