![]() ![]() Boron: The atomic number of boron is 5 and its mass number is 10.811.Applications of some important elements are discussed below. These compounds are quite useful in daily life and can be used for many different purposes, such as construction, electronics and production of other materials. Group three elements are the elements which contain three electrons in the outer most shell. Among p-elements there are elements that can be both cations and anions (A1, Ca, Ti, Se, Pb, PB, Sb, Bi) or only anions (В, С, Sі, N, Р, Аs, О, Те, Р, СІ, Вг, І, Аt).Īpplications Of P-block Elements in Daily Life: Group III Elements: ![]() Fluorine, oxygen, and nitrogen are the most electronegative elements in the periodic table in the given order.Īlong the period the metallic character decreases, whereas non-metallic character increases, and on moving down the group the metallic character increases, whereas non-metallic character, decreases. ![]() Electronegativity increases along the period and decreases down the group. Electron affinity generally becomes more negative on moving from left to right along a period, because it becomes easier for the atom to gain electrons due to increased nuclear attraction, and becomes less negative down the group as it becomes harder for an atom to gain electrons. General trends for p-block elements: atomic size decreases along the period and increases down the group, the first ionization enthalpy of the p-block elements generally decreases down the group and increases on moving from left to right along a period, nonetheless, there are certain exceptions, e.g., the first ionization enthalpy of a group 16 element is lower than that of a group 15 element. ![]()
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