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Gaurav Seth 6 years, 4 months ago
Formal charge is defined as the charge assigned to an atom of a molecule.
In , sulfur is the central atom. Therefore, formula to calculate the formal charge will be as follows.
Formal charge = Valence electrons -
Valence electrons in sulfur are 6 and lone pairs on sulfur are zero. Number of bonded electrons of sulfur are 8.
Therefore, formal charge on sulfur atom will be calculated as follows.
Formal charge = Valence electrons -
= 6 -
= 6 - 4
= 2
Thus, we can conclude that the formal charge on sulfur in is +2.
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Mehak Gautam 6 years, 4 months ago
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Sia ? 6 years, 4 months ago
A regular three-dimensional arrangement of constituent particles in a crystal in which each particle is represented by a point is called crystal lattice.
Gaurav Seth 6 years, 4 months ago
Crystal Lattices

- Crystalline solids have a regular and periodically repeating pattern of constituent particles.
- The diagrammatical representation of three dimensional arrangements of constituent particles of a crystal in space with each particle depicted as a point is called crystal lattice.
- There are only 14 possible three dimensional lattices and are known Bravais Lattices.
- Each point in a lattice is called lattice point or lattice site.
- Each point in a crystal lattice signifies one constituent particle which can be an atom, a molecule or an ion.
- Lattice points are joined together using straight lines to identify the geometry of the lattice.
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Smitha P Krishnan 6 years, 4 months ago
carbon monoxide reacts with steam in the presence of a catalyst to form carbon dioxide and hydrogen.
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According to Heisenberg ,it is impossible to measure both the position and momentum of moving particle with accuracy.
- If value of position is small ,it can be measured accurately but not momentum.
- If value of momentum is small it is measured accurately but not the position.
Deepak Gurjar 6 years, 4 months ago
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Gaurav Seth 6 years, 4 months ago
S= Sharp P= Principal D= Diffuse F= Fundamental S, p,d,f are the names of subshells within a shell whose values are determined by azimuthal quantum number. Their respective azimuthal quantum numbers are 0, 1, 2 and 3. These terminologies are adopted from Spectroscopic analysis of matters.
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Sia ? 6 years, 4 months ago
Thermodynamics is the branch of physics that deals with the concepts of heat and temperature and the interconversion of heat into other forms of energy.
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Rahul Raj 6 years, 4 months ago
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