Lattice Energy

Question 1

Lattice energy holds together what bond?

Answer 1

ionic bonds

Question 2

What is Lattice energy?

Answer 2

the energy required to completely separate an ionic compound’s cations and anions

Question 3

The larger the charges on ions, the larger the ____ energy?

Answer 3

bigger charges = larger lattice energy

Question 4

shorter bond distances (smaller ions), the larger?

Answer 4

shorter bond distances = larger lattice energy

Question 5

Lattice energy equation

Answer 5

Lattice energy = (cation charge * anion charge) / bond distance

Question 6

in general, an atoms size gets smaller as you move what direction across the periodic table?

Answer 6

to the right and up (the same trend as electronegativity -makes sense bc the shorter or smaller a bond, the stronger its energy for an e-)

Question 7

How is Latice energy (LE) is related to Size (S) and Charge (C)?

Answer 7

• *LE and C directly, both increase or decrease

* * LE and S indirectly, LE increases as size decreases or vice versa