1.7: Periodic Trends

Multiple Choice

Which element has the biggest atomic radius?

• Cs

• Ag

• Pb

• Br

• Se

Multiple Choice

The atom with the largest atomic radius in Group 18 is - 

• Ar
• He
• Kr
• Rn

Multiple Choice

Which atom has the largest atomic radius?

• potassium

• rubidium

• francium

• cesium

Multiple Choice

Which of the following pairs correctly shows the proper relationships between atoms/ions in terms of atomic/ionic radii?

• Na < Na⁺

• Cl > Cl^-

• Ti < Zn

• N^3- > N

• O > S

Multiple Choice

Put the following in order of increasing ionization energy: Sodium (Na), Oxygen (O), Boron (B)

• Sodium, Boron, Oxygen
• Oxygen, Boron, Sodium
• Sodium, Oxygen, Boron
• Oxygen, Sodium, Boron

Multiple Choice

Which has the greater EN: 
N or C?

• C
• N

Multiple Choice

Which has the greater EN: 
H or F?

• H
• F

Multiple Choice

Which of the following best helps explain why the electron affinity of Br has a greater magnitude then that of I?

• Br has a lower electronegativity

• Br has a lower ionization energy

• An added electron would go into a new shell for Br but not I

• There is a greater attraction between an added electron and the nucleus in Br than I

Multiple Choice

Which of the following best helps explain why the electronegativity of Cl is less than that of F?

• The mass of the Cl atom is greater than the mass of F

• The Cl nucleus contains more protons than the F nucleus

• When Cl and F form bonds with other atoms, the Cl bonding electrons are more shielded from the positive nucleus than the bonding electrons of F

• Because Cl is larger than F, the repulsions among electrons in the valence shell of Cl are less than the repulsions among electrons in the valence shell of F