GEOLOGY

Detailed explanation-1: -Ans-The simple cubic unit cell consists of eight atoms, which outline the cube itself. These are corner atoms, so each contributes only one-eighth of an atom to the unit cell, resulting in a total of one atom.

Detailed explanation-2: -The simple cubic unit cell is delineated by eight atoms, which mark the actual cube. These are corner atoms, so each one only contributes one eighth of an atom to the unit cell, thus giving us only one net atom.

Detailed explanation-3: -Hint:As we know, the atoms in a cubic based unit cell having one atom on each corner means there are 8 atoms.

Detailed explanation-4: -For the (111) plane there are N111 = 3 × (1/6) + 3 × (1/2) = 2 atoms within the unit cell.

Detailed explanation-5: -The smallest repeating unit of a crystal lattice is the unit cell. The simple cubic unit cell contains only eight atoms, molecules, or ions at the corners of a cube.