how to write a character sketch

According to Lamarck the characters acquired by an organism are transmitted by heredity to the next generation. In every generation, fresh characters are acquired. With the result, after many generations, the changes accumulate to the extent that the species becomes modified in..

The elements of group 14 are less metallic due to relatively large values of ionization energies as compared to elements of group 13. The metallic character however increases down the group from C to Pb...

Both hydrogen and halogens have tendency to accept electron to form monovalent anion:..

Covalent bonds form due to mutual sharing of one or more pairs of electrons between two atoms. In a covalent bond, the shared pair of electrons remains localised in a definite space between the nuclei of the two atoms. This gives a directional character to the covalent bo..

Most of the transition elements of the first row form metallic bonds due to the presence of incomplete outermost energy level. So, all the transition elements exhibit metallic characters. The strength of the metallic bond depends upon the number of unpaired d-electrons. As the number inc..

Ammonia molecule has a strong tendency to donate its lone pair of electrons of nitrogen to other molecules. Thus, it acts like a strong Lewis base. In aqueous solutions, NH 3 ionizes in accordance with the reaction...

Oxygen is neither acidic nor basic. Both blue and red litmus are unaffected by oxyge..

Carbon monoxide is a reducing agent. It reduces many oxides to the respective metal. For example, CO also reduces I 2 O 5 to iodine...

Metals are elements that have a tendency to lose electrons and form cations. They normally do not accept electrons. To summarize: metals are electropositive in nature, lustrous, malleable, ductile, good conductors of heat and electricity and generally form basic or amphoteric oxides with oxyg..

The graph of a given function gives a visual presentation of the behaviour of the function involving a study of symmetry, rise and fall, region of existence, passage through specific points etc. The following points are helpful to trace the curv..