10.31 SI Session

Which of the following affect lattice energy? (select all that apply)

• Charge of the ions

• Temperature

• Type of solvent

• Size of the ions

Which of the following ionic compounds has the largest lattice energy?

• FeN

• CsBr

• LiF

• CaO

How many valence electrons would you draw in a Lewis dot structure for oxygen (O)?

• 2

• 4

• 6

• 8

When comparing a triple bond and a single bond... (select all that apply)

• the triple bond is stronger (has a higher bond energy)

• the single bond is stronger (has a higher bond energy)

• the triple bond is longer

• the single bond is longer

Making a bond has a (+/-) enthalpy change, while breaking a bond has a (+/-) enthalpy change.

• +, -

• -, +

Choose the correct equation to calculate the enthalpy change given bond energies.

• m(Hf of bonds broken) - n(Hf of bonds formed)

• m(Hf of bonds formed) - n(Hf of bonds broken)

Periodic trends: Cesium (Cs) has a large... (select all that apply)

• atomic radius

• ionization energy

• metallic behavior

• acidity

When writing an electron configuration for a positive ion (cation), remove electrons from...

• the orbital written last / furthest to the right

• the orbital(s) with the highest principal quantum number