GEOLOGY
CRYSTALLOGRAPHY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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1 atom
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2 atoms
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4 atoms
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8 atoms
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Detailed explanation-1: -Therefore, a particular unit cell has only 1/8th of an atom. Each small sphere in the following figure represents the centre of a particle that occupies that particular position and not its size. This structure is known as an open structure. 8 × 1/8 = 1 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: -A cubic unit cell has one atom on each corner and one atom on each body diagonal.
Detailed explanation-4: -4: A simple cubic lattice unit cell contains one-eighth of an atom at each of its eight corners, so it contains one atom total.
Detailed explanation-5: -In the simple cubic cell, each corner atom is shared by 8 different unit cells.