What is the packing fraction of ZNS?

Hence, the Packing fraction of diamond if it has an arrangement of carbon atoms similar to the arrangement in zinc sulphide is 34% and the correct answer is option C.

How do you calculate packing fractions?

The fraction of total space that is filled with the inherent constituent particles of a particular cell or structure is called the packing fraction. It can be obtained by dividing the total volume occupied by constituent particles by the cell’s total volume.

What is the packing fraction of zinc blende?

Summary: Zinc blend is a compound that comes in two forms: sphalerite and wurtzite. These are characterized by a 1:1 stoichiometric ratio of Zinc to Sulfur. It maintains a tetrahedral arrangement in both forms.

Is ZNS FCC or BCC?

Zincblende/sphalerite is based on a fcc lattice of anions whereas wurtzite is derived from an hcp array of anions. In both structures, the cations occupy one of the two types of tetrahedral holes present.

What do you mean by packing fraction?

: a measure of the loss or gain of total mass in a group of nucleons when they are brought together to form an atomic nucleus : the ratio multiplied by 10,000 of the mass defect to the mass number.

What is the packing fraction of NaCl crystal?

The packing efficiency of a $NaCl$ structure is $74\% $ and the remaining $26\% $ is void space inside the cubic cell. The relation between the edge length ‘a’ and the radius of the atoms ‘r’ is: $r = \dfrac{a}{{2\sqrt 2 }}$ . The number of atoms per unit cell is 4 as mentioned above.

What is packing fraction Physics 12?

Packing fraction tells about how the nucleons are arranged in a nucleus. It can be defined as the ratio of the mass defect to the nucleons. Mass defect is the difference in the actual isotopic mass (M) and mass number (A).

What is the packing fraction of a BCC unit cell?

The packing efficiency of the body-centred cubic cell is 68 %. Thus 32 % volume is empty space (void space).

What is the formula of zinc blende?

ZnS
Due to the same number of atoms in a single unit cell of Zn and S, it is consistent with the formula ZnS. So, this will be the molecular or chemical formula of Zinc Blende. Hence, the formula of Zinc Blende is ZnS.

Is fluorite an FCC?

In solid state chemistry, the fluorite structure refers to a common motif for compounds with the formula MX2. The X ions occupy the eight tetrahedral interstitial sites whereas M ions occupy the regular sites of a face-centered cubic (FCC) structure.