Concept explainers
(a)
Interpretation:
Whether
Concept Introduction:
The energy that is needed to remove an electron from the isolated, neutral gaseous atom is known as ionization energy. It is represented by
(b)
Interpretation:
Whether
Concept Introduction:
Refer to part (a).
(c)
Interpretation:
Whether
Concept Introduction:
Refer to part (a).
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Chemistry: Principles and Practice
- Discuss each conclusion from a study of redox reactions:(a) The nitride ion functions only as a reducing agent.(b) The nitrate ion functions only as an oxidizing agent.(c) The nitrite ion functions as an oxidizing or a reducing agentarrow_forwardA certain element, M, is a main-group metal that reacts with chlorine to give a compound with the chemical formula MCl2 and with oxygen to give the compound MO.(a) To which group in the periodic table does element M belong?(b) The chloride contains 44.7% chlorine by mass. Name the element Marrow_forwardEach of the chemically active Period 2 elements forms sta-ble compounds that have bonds to fluorine.(a) What are the names and formulas of these compounds?(b) Does ΔEN increase or decrease left to right across the period?(c) Does percent ionic character increase or decrease left to right?(d) Draw Lewis structures for these compounds.arrow_forward
- Choosing from the elements in the third row of the Periodic Table write out thechemical formula of(i) A basic oxide.(ii) An amphoteric oxide.(iii) An acidic oxidearrow_forwardGive the group number and the general valence electron configuration of an element with the following electron-dot symbol. (For example, type ns2 np6 for ns²np°, which is the valence configuration of all group 8A elements.) (a) group number electron configuration (b) group number electron configurationarrow_forwardWrite the chemical formulas for the following compounds:(a) Silver cyanide(b) Calcium hypochlorite(c) Potassium chromate(d) Gallium oxide(e) Potassium superoxide(f) Barium hydrogen carbonatearrow_forward
- 5. Which of the following alkali metal halides has the larger lattice energy, and which has the smaller lattice energy? Explain. (a) (b)arrow_forwardPredict the best choice in each of the following. You may wish to review the chapter on electronic structure for relevant examples.(a) the most metallic of the elements Al, Be, and Ba(b) the most covalent of the compounds NaCl, CaCl2, and BeCl2(c) the lowest first ionization energy among the elements Rb, K, and Li(d) the smallest among Al, Al+, and Al3+(e) the largest among Cs+, Ba2+, and Xearrow_forwardCompare the magnitude of the lattice energy for each of the following two ion pairs. (a) K* and CI separated by a distance of 347 pr larger (b) K* and I separated by a distance of 365 pm smaller Submit Answer Retry Entire Group 9 more group attempts remainingarrow_forward
- Determine the second ionization energy of calcium (in kJ mol-1) from the given data (all in kJ mol-1): AH°[CaCl,(s)] = -796 AH¡[Ca(g)] = 178 AH°[CI(g)] = 122 First ionization energy of Ca(g) = 590 Electron affinity of Cl(g) = -349 Lattice enthalpy of CaCl,(s) = -2260 А 1150 В 1235 C 1093 D 1210arrow_forwardStarting with the previous noble gas, write the condensed electron configurations of the following ions. (a) Fe2+(b) Ni2+(c) Mn2+arrow_forwardEnergy is required to remove two electrons from Ca to formCa2+, and energy is required to add two electrons to O toform O2 - . Yet CaO is stable relative to the free elements.Which statement is the best explanation? (a) The latticeenergy of CaO is large enough to overcome these processes.(b) CaO is a covalent compound, and these processes areirrelevant. (c) CaO has a higher molar mass than either Ca orO. (d) The enthalpy of formation of CaO is small. (e) CaO isstable to atmospheric conditions.arrow_forward
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