Atomic Radius and Related Concepts Quiz

What is the atomic radius defined as?

• The distance between two atoms

• Half the distance between neighboring nucleus (affects size of atom)

• The full distance between neighboring nuclei

• The distance from the nucleus to the outermost electron

What is the symbol for Lithium?

• Li

• Cs

• Na

• K

What period is Cesium in?

• Period 4

• Period 5

• Period 6

• Period 7

Which element is shown with a smaller distance between energy levels?

• Cesium

• Lithium

• Sodium

• Potassium

Which element is shown with a greater distance between energy levels?

• Lithium

• Hydrogen

• Cesium

• Sodium

What is the valence of Ne?

• 8

• 7

• 6

• 5

What happens to the size of atoms as you go across a row in the periodic table?

• Increases

• Decreases

• Stays the same

• Doubles

Which element is represented by the symbol 'Li'?

• Lithium

• Neon

• Helium

• Oxygen

Which element is represented by the symbol 'Ne'?

• Lithium

• Neon

• Helium

• Oxygen

What is the main reason for the decrease in atomic size across a row?

• Greater Proton Pulling Power

• More electrons

• Less neutrons

• Increased temperature