For hcp lattice which statements will be correct ?

Which of the following statements is/ are correct about lattice enthalpy?

Which of the following statements is/are correct for lattice energy ?

Which of the following statements is/are correct about hexagonal close packing ? 1. The coordination number is 8 2. It is ABAB type packing in which third layer is aligned with the first layer 3. Be, Mg, Mo etc. are found to have hcp structure 4. In hcp, atoms occupy 74% of the available space

Which of the following statements is/are correct about hexagonal close packing ? 1. The coordination number is 8 2. It is ABAB type packing in which third layer is aligned with the first layer 3. Be, Mg, Mo etc. are found to have hcp structure 4. In hcp, atoms occupy 74% of the available space

Which of the following statements are correct statements ?

Which of the following statements are correct statements ?

which of the following statement is correct for the NaCl lattice?

A mineral having the formula AB_(2) crystallizes in the ccp lattice, with A atoms occupying the lattice points. Select the correct statement(s).