Given the information in the following table for the Group 7 elements, which of the following would not be a predicted property of technetium (Tc, Z=43)? Element Manganese (Mn) Technetium (TC) Rhenium (Re) Melting Point (°C) 1244 ???? 3180 AH vap (kJ/mol) 221 ???? 704 The AH vap of Tc is approximately 585 kJ/mol. The melting point of Tc is around 2200 °C. The highest neutral oxide of Tc is Tc207. The density of Tc is likely around 25.0 g/cm³. Density (g/cm³) 7.43 ???? 21.0 Highest Neutral Oxide Formed Mn₂07 ???? Re207

Given the information in the following table for the Group 7 elements, which of the following would not be a predicted property of technetium (Tc, Z=43)? Element Manganese (Mn) Technetium (TC) Rhenium (Re) Melting Point (°C) 1244 ???? 3180 AH vap (kJ/mol) 221 ???? 704 The AH vap of Tc is approximately 585 kJ/mol. The melting point of Tc is around 2200 °C. The highest neutral oxide of Tc is Tc207. The density of Tc is likely around 25.0 g/cm³. Density (g/cm³) 7.43 ???? 21.0 Highest Neutral Oxide Formed Mn₂07 ???? Re207

World of Chemistry, 3rd edition

3rd Edition

ISBN:9781133109655

Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste

Chapter3: Chemical Foundations: Elements, Atoms, And Ions

Section: Chapter Questions

Problem 37A

See similar textbooks

Similar questions

The inert-pair effect is sometimes used to explain the tendency of heavier members of Group 3A (13) to exhibit +1 and +3 oxidation states. What does the inert-pair effect reference? [Hint: Consider the valence electron configuration for Group 3A (13) elements.]
Why is SnCl4 not classified as a salt?
Look in Appendix D and compare the electron configurations shown there with the fusion enthalpies for the metals shown in Table 9.7. Is there any correlation between these configurations and this property? Does strength of attraction among metal atoms correlate with number of valence electrons? Explain your answers.
Write balanced chemical equations for the following reactions: (a) cadmium burned in air. (b) elemental cadmium added to a solution of hydrochloric acid. (c) cadmium hydroxide added to a solution of acetic acid, CH3CO2H