A subadditive function is a function, having a domain A and an ordered codomain B that are both closed under addition, with the following property: An example is the square root function, having the non-negative real numbers as domain and codomain, since we have:
Sbf5 is a nonpolar bond because the dipole moment is nonexistent. If you were to draw the chemical structure you would see that due to electronegativity of the fluorine atoms, that the vectors where the electrons are pulled away from the SB cancel one another, forcing SbF5 to be a nonpolar covalent molecule. non-polar compound occurs when there is an equal sharing of electrons between two different atoms. Examples of household non-polar compounds include fats, oil and petrol/gasoline.
The approximate bond angle is about 107 degree. For SF2, the sulphur atom is surrounded by four electron pairs but there are two bonding pairs and two lone pairs. Therefore, the shape of SF2 is ' V ' . The repulsive force between lone pair - lone pair is greater than between the lone pair - bond pair . Hence the bond angle is even smaller than 107. The approximate bond angle is about 104.5 degree. For BCl3, the boron atom is surrounded by three electron pairs and the three electron pairs are all bonding pairs. Therefore the shape of BCl3 is trigonal planar and the bond angle is 120 degree.