Ionic Sizes and Electronegativity Trends

The video tutorial covers questions on electronegativity and ionic radii, focusing on determining the order of electronegativity for elements, identifying the smallest ion among isoelectronic species, and establishing the correct order of atomic/ionic radii. The tutorial emphasizes understanding periodic trends and provides a detailed explanation of each question, encouraging viewers to review the periodic table and apply their knowledge. The video concludes with a call to action for viewers to subscribe and support the channel.

Which of the following elements has the highest electronegativity?

• Carbon

• Silicon

• Phosphorus

• Nitrogen

In terms of electronegativity, which element is the least electronegative?

• Nitrogen

• Silicon

• Carbon

• Phosphorus

Which ion is the smallest among the following?

• Na+

• N3-

• O2-

• F-

What is the electron configuration of the ions N3-, O2-, F-, and Na+?

• Helium

• Krypton

• Neon

• Argon

Which of the following has the correct order of atomic radii?

• Nitrogen, Boron, Beryllium

• Beryllium, Boron, Nitrogen

• Boron, Beryllium, Nitrogen

• Nitrogen, Beryllium, Boron

Among the isoelectronic species, which one is expected to be the smallest?

• N3-

• F-

• Na+

• O2-

Which of the following orders correctly represents the size of sodium, lithium, and potassium?

• Potassium, Sodium, Lithium

• Sodium, Lithium, Potassium

• Lithium, Sodium, Potassium

• Sodium, Potassium, Lithium

For the ions Fe3+, Fe2+, and Fe4+, which order represents increasing size?

• Fe4+, Fe2+, Fe3+

• Fe3+, Fe2+, Fe4+

• Fe4+, Fe3+, Fe2+

• Fe2+, Fe3+, Fe4+

What happens to the atomic radius as you move from left to right across a period?

• It increases

• It decreases

• It remains the same

• It fluctuates

Which of the following statements is true about cations?

• They have more electrons than protons

• They lose electrons

• They have a larger radius than their neutral atom

• They gain electrons