Negativity example sentences

Carbon also has unique ability to form p?– p? multiple bonds with itself and with other atoms of small size and high electronegativity.As the electronegativity of A increases, the strength of the acid also increases.Electronegativity generally increases across a period from left to right (say from lithium to fluorine) and decrease down a group (say from fluorine to astatine) in the periodic table.Down the group the size increases and electronegativity decreases, and, thereby, tendency to show catenation decreases.Due to the maximum percentage of s character (50%), the sp hybridised orbitals of carbon atoms in ethyne molecules have highest electronegativity; hence, these attract the shared electron pair of the C-H bond of ethyne to a greater extent than that of the sp2 hybridised orbitals of carbon in ethene and the sp3 hybridised orbital of carbon in ethane.Periodic trends are observed in atomic sizes, ionization enthalpies, electron gain enthalpies, electronegativity and valence.However, we shall discuss the periodic trends with respect to atomic and ionic radii, ionization enthalpy, electron gain enthalpy and electronegativity.What are the reasons for the different chemical behaviour of the first member of a group of elements in the s- and p-blocks compared to that of the subsequent members in the same group? The anomalous behaviour is attributed to their small size, large charge/ radius ratio and high electronegativity of the elements.Down the group, electronegativity first decreases from B to Al and then increases marginally (Table 1 2).Four significant features of attitudes are : alence (positivity or negativity), Extremeness, Simplicity or Complexity (multiplexity), and Centrality.It is due to its smaller size, higher electronegativity, higher ionisation enthalpy and unavailability of d orbitals.The electronegativity values for elements from Si to Pb are almost the same.Also, when the H-A bond becomes more polar i.e., the electronegativity difference between the atoms H and A increases and there is marked charge separation, cleavage of the bond becomes easier thereby increasing the acidity.Alkanes are almost non-polar molecules because of the covalent nature of C-C and C-H bonds and due to very little difference of electronegativity between carbon and hydrogen atoms.However, a number of numerical scales of electronegativity of elements viz.