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- Write shortly about the followings:1- Types of bonding2- Ionization potential3- Electron affinity4- Semimetals or metalloids.5- The average valence electron energy (AVEE).To ionize Mg to Mg2+ costs two times as much energy as to form Mg+. The formation of O2- is endothermic rather than exothermic as for O-. Nevertheless, magnesium oxide is always formulated as Mg2+ O2- rather than Mg+O-a) Give theoretical reason for formulation of Mg2+O2-b) What simple experiment could be done to predict that magnesium oxide wasnot Mg+O- ?What is the valence electron configu.ration for Group SA (lS) elements?Metallic character increases when going down a group. Give some examples illustrating how Bi and Sbhave metallic characteristics not associated with N, P,and As. Elemental nitrogen exists as N2 whereas in the gas phase the elements phosphorus, arsenic, and antimony consist of P4' As4, and Sb4 molecules, respectively.Give a possible reason for" this difference between N2 and the other Group SA (lS) elements. White phosphorus is much more reactive than black or red phosphorus. Explain.
- given the following ionic radii/nm; Li+ = 0.078, F- = 0.731, Rb+ = 0.149, Br- = 0.149. What type of structure would you expect for (a) LiF and (b) RbBr?Elements in Group IIA (alkali earth metals) make oxides with the formula (X can be any alkali earth metal) a) X3O2 b) XO c) XO2 d) X2OConsider the Mg2+, Cl-, K+, and Se2- ions. The four spheresbelow represent these four ions, scaled according to ionic size.(a) Without referring to Figure 7.8, match each ion to its appropriatesphere. (b) In terms of size, between which of the sphereswould you find the (i) Ca2+ and (ii) S2- ions?
- What is the zeff, atomic radius, and ionization energy of Arsenic?Please don't provide handwritten solution... The element that has a valence configuration of 2s² is Mg Ca Sr Ba BePlatinum hexafluoride, PtF6 has a very high electron affinity (772 kJ/mol) but when lithium metal is reacted with platinum hexafluoride it is lithium fluoride Li+F- that is produced not Li+PtF6- that is formed. Suggest a reason why.
- Consider the following data for ruthenium: atomic mass 101.07 g/mol electronegativity 2.20 electron affinity 101.3 kJ/mol ionization energy 710.2 kJ/mol heat of fusion 25.7 kJ/mol Does the following reaction absorb or release energy? (1) Ru+(g) +e− -> Ru(g) Is it possible to calculate the amount of energy absorbedor released by reaction (1) using only the data above? If you answered yes to the previous question, enter theamount of energy absorbed or released by reaction (1): Does the following reaction absorb or release energy? (2) Ru−(g) -> Ru(g) + e− Is it possible to calculate the amount of energy absorbedor released by reaction (2) using only the data above? If you answered yes to the previous question, enter theamount of energy absorbed or released by reaction (2)In the chemical process called electron transfer, an electron istransferred from one atom or molecule to another. A simpleelectron transfer reaction isA(g) + A(g)---->A+(g) + A-(g) In terms of the ionization energy and electron affinity ofatom A, what is the energy change for this reaction? For arepresentative nonmetal such as chlorine, is this process exothermic?For a representative metal such as sodium, is thisprocess exothermic?23Na,88Sr2+,Se,Br-,35CI. Which of the following are ions ? Provide reason