Which of the following will most likely have the highest lattice energy? licl -1, +1 charge nacl +1, -1 charge bai, +2, -2 charge licl +1, -1 charge mgo +2, -2 charge

Barium iodide since it has a higher atomic mass and its atomic number is higher

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.