Whats an atomic nucleus for middle school here are the choses
A:the outer part of an atom in which electrons move
B:the outer part of an atom in which neutrons move
C:the central part of an atom, composed of protons and neutrons
D:the central part of an atom, composed of protons and electrons

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.