1. Suppose you have a one gram sample of potassium Suppose a meteorite is found in the earth near your home and you are invited to help a scientist determine its age. The meteorite has 12.5% potassium-40 as compared to a similar newly formed meteor. How old is the meteorite? 2. Use the age of the meteorite you calculated in the previous question to determine how much uranium-235 was in the meteorite when it formed if it currently has 3.50 grams of U-235.

The table lists the lattice energies of some compounds.compoundlattice energy (kj/mol)lif            –1,036licl            –853naf            –923kf            –821nacl            –786which statement about crystal lattice energy is  best  supported by the information in the table? the lattice energy increases as cations get smaller, as shown by lif and kf.the lattice energy increases as the cations get larger, as shown by lif and licl.the lattice energy decreases as cations get smaller, as shown by nacl and naf.the lattice energy decreases as the cations get smaller, as shown by naf and kf.