A2.00 l birthday balloon contains 0.327 g of helium. t/i (a) calculate the number of helium atoms in the balloon. (b) a blimp occupies a volume of 5.74 3 106 l. (figure 4) assuming that the blimp has the same number of atoms per litre as the party balloon under the same conditions, how many helium atoms are in the blimp?

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.