(a)
Interpretation:
Which element is a metal should be determined.
Concept introduction:
Most of the elements found in the periodic table are metals. All elements in group 1 and 2 are metals except hydrogen. All elements in d block are metals. They are called
(b)
Interpretation:
Which element has the greater ionization energy should be determined.
Concept introduction:
Ionization energy is amount of energy must be absorbed by a gaseous atom in ground state to remove an electron. Further away the electron from the nucleus; it’s easy to remove the electron from the atom/ion. Hence, ionization energy will be less.
(c)
Interpretation:
Which element has the larger atomic radius should be determined.
Concept introduction:
Atomic radius is the distance between the nucleus and the valence electron shell of the atom.
(d)
Interpretation:
Which element has the greater
Concept introduction:
Electron affinity is the change in energy when an electron is added to an atom to form a negative ion.
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Selected Solutions Manual For General Chemistry: Principles And Modern Applications
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- Manganese is a Group 7B element in Period 4. What would you expect for the configuration of outer electrons of manganese?arrow_forward6.68 Indicate which species in each pair has the more favorable (more negative) electron affinity. Explain your answers. (a) Cl or S, (b) S or P, (c) Br or Asarrow_forwardName and give the symbol of the element that has the characteristic given below. (a) Its electron configuration in the excited state can be 1s22s22p63s1 3p3. (b) It is the least electronegative element in period 3. (c) Its +3 ion has the configuration [36Kr]. (d) It is the halogen with the largest atomic radius. (e) It has the largest ionization energy in Group 16.arrow_forward
- What is the difference between core electrons and valence electrons? Why do we emphasize the valence electrons in an atom when discussing atomic properties? What is the relationship between valence electrons and elements in the same group of the periodic table?arrow_forwardArrange the following in order of increasing radius and increasing ionization energy. a. N+, N, N b. Se, Se, Cl, Cl+ c. Br, Rb+, Sr2+arrow_forwardAn unknown element is a nonmetal and has a valence electron configuration of ns2np4 a. How many valence electrons does this element have? b. What are some possible identities for this element? c. What is the formula of the compound this element would form with potassium? d. Would this element have a larger or smaller radius than barium? e. Would lhis element have a greater or smaller ionization energy than fluorine?arrow_forward
- Periodic Properties I A hypothetical element, X, has the following ionization energy values: First ionization energy: 900 kJ/mol Second ionization energy: 1750 kJ/mol Third ionization energy: 14,900 kJ/mol Fourth ionization energy: 21,000 kJ/mol Another element, Y, has the following ionization energy values: First ionization energy: 1200 kJ/mol Second ionization energy: 2500 kJ/mol Third ionization energy : 19,900 kJ/mol Fourth ionization energy: 26,000 kJ/mol a To what family of the periodic table would element X be most likely to belong? Explain? b What charge would you expect dement X to have when it forms an ion? c If you were to place elements X and Y into the periodic table, would element Y be in the same period as element X? If not in the same period, where might they be relative to each other in the periodic table? d Would an atom of Y be smaller or larger than an atom of X? Explain your reasoning.arrow_forwardConsider the following ionization energies for aluminum: Al(g)Al+(g)+eI1=580kJ/molAl+(g)Al2+(g)+eI2=1815kJ/molAl2+(g)Al3+(g)+eI3=2740kJ/molAl3+(g)Al4+(g)+eI4=11,600kJ/mol a. Account for the trend in the values of tbe ionization energies. b. Explain the large increase between I3 and I4arrow_forwardWrite the symbols of (a) all the elements in period 5 that have at least two half-filled 5p orbitals. (b) all the elements in Group 1 that have full 3p orbitals. (c) all the metalloids that have paired 3p electrons. (d) all the nonmetals that have full 3d orbitals and 3 half-filled 3p orbitals.arrow_forward
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