Why does common table salt (nacl) have a high melting point?

NaCI (sodium chloride) has a high melting point because of the strong electrostatic attraction between its positive and negative ions.

Due to the strong attraction between the positive charge of the sodium and the negative charge of the chlorine NaCl has a strong ionic
bond. This strong bond requires more heat to break apart than normal bonds.

There is one s orbital, and there are three p orbitals, five d orbitals, and seven f orbitals. thus, the answer is b. do not confuse the number of orbitals in a subshell with the number of electrons the subshell can hold. each orbital can hold two electrons, so the capacity of an nf subshell is 14 electrons.