Ch.7 - Periodic Properties of the Elements
Chapter 7, Problem 58
Discussing this chapter, a classmate says, 'Since elements that form cations are metals and elements that form anions are nonmetals, elements that do not form ions are metalloids.' Do you agree or disagree?
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Related Practice
Textbook Question
If the electron affinity for an element is a negative number,
does it mean that the anion of the element is more stable
than the neutral atom? Explain.
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Textbook Question
Which of the following, I or I-, will have a negative electron
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Textbook Question
Consider the following equation:
Al3+1g2 + e-¡Al2+1g2
Which of the following statements are true? (i) The energy
change for this process is the second electron affinity of Al
atom since Al2+1g2 is formed. (ii) The energy change for this
process is the negative of the third ionization energy of the Al
atom. (iii) The energy change for this process is the electron
affinity of the Al2+ ion.
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Predict whether each of the following oxides is ionic or molecular: SnO2, Al2O3, CO2, Li2O, Fe2O3, H2O.
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Textbook Question
Would you expect zirconium(II) oxide, ZrO, to react more readily with HCl(aq) or NaOH(aq)?
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Textbook Question
Arrange the following oxides in order of increasing acidity: K2O, BaO, ZnO, H2O, CO2, SO2.
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