Which of these pairs of elements would be most likely to form an ionic compound?

Question

Which of these pairs of elements would be most likely to form an ionic compound?_______ Cl and I Cl and Mg C and S Al and K Al and Mg Calculate the molecular mass of tetaphosphorus decaoxide, P_4O_10. a corrosive substance which can be used as a drying agent. 263 88 amu 469.73 amu 94.97 amu 190.97 amu 139.88 amu The number of resonance structures for the sulfur dioxide molecule that satisfy the octet rule is _____ 4 2 1 3 None of these "The volume of an ideal gas is directly proportional to the number of moles of the gas at ______constant temperature and pressure" is a statement of _________Law Boyle's Avogadro's Charles' Dalton's Gay-Lussac's Sand is converted to pure silicon in a three step process The final step in this process is as follows SiCl_4 (g) + 2Mg(s) rightarrow 2MgCl(s) + Si(s) Delta H degree _rxn = -625.6 kJ/mol What is the enthalpy change if 25.0 mol of silicon tetrachloride is converted to elemental silicon? -25.0 kJ -3.13 times 10^3 kJ -626kJ -1. 56 times 10^4 kJ -3.13 times 10^4 kJ or the reaction: 2 A + B_2 rightarrow 2 AB Delta H = +50.0 kJ. The standard enthalpy of formation for AB is 50.0 kJ. The bond energy for each A-B bond is 50.0 kJ The molecule AB contains less energy than A or B_2. Heat is released to the surroundings. The reaction is endothermic.

Explanation / Answer

Ans 6 b) Cl and Mg

Ionic bond is formed between the atoms, when one species donate the electrons and the other species accepts the electrons. Here Mg belonging to group II , donates its 2 electrons, 1 each to th two chlorine atoms. Mg becomes divalent cation after donating electron and Cl becomes monovalent anion after accepting the electron.

The electrostatic attraction or the ionic bond in between them leads to the formation of ionic compound MgCl2.

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