How many nearest neighbours are there for Si and O atoms in quartz crystals?

How many nearest neighbours are there in an atom or ion for an octahedral hole of a closed packed structure?

How many nearest neighbours are there in an atom or ion for an octahedral hole of a closed packed structure?

How many nearest neighbours are there in an atom or ion for an octahedral hole of a closed packed structure?

Quartz crystals are

The number of nearest neighbour and the next neighbour of Na^(+) ion in a crystal of NaCl are respectively-

The number of nearest neighbours and next nearest neighbours of an Na^(o+) ion in a crystal of NaCl are, respectively,

The number of nearest neighbours and next nearest neighbours of an Na^(o+) ion in a crystal of NaCl are, respectively,

The number of nearest neighbours and next nearest neighbours of an Na^(o+) ion in a crystal of NaCl are, respectively,

How many nearest neighbours surround each ion in a face-centered cubic lattice of an ionic crystal ?

How many nearest neighbours surround each ion in a face-centered cubic lattice of an ionic crystal ?