7.103 Elemental barium reacts more violently with water than does el-emental calcium. Which of the following best explains this dif-ference in reactivity? (i) Calcium has greater metallic characterthan does barium. (ii) The electron affinity of calcium is smallerthan that of barium. (iii) The first and second ionization en-ergies of barium are less than those of calcium. (iv) The atomicradius of barium is smaller than that of calcium. (v) The ionicradius of the barium ion is larger than that of the calcium ion.

Barium and calcium both are reactive metals and react violently with water.

Answered: IMore violently Nate emental calcium.…

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter5: Electron Configurations And The Periodic Table

Section: Chapter Questions

Problem 117QRT

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Similar questions

Valence electrons in an atom of phosphorus are closer to the nucleus than the valence electrons ofaluminum because: (A) P has a greater effective nuclear charge and a greater shielding than Al.(B) P has a greater effective nuclear charge with the same shielding as Al.(C) P has the same effective nuclear charge with greater shielding than Al.(D) P has the same effective nuclear charge and the same shielding as Al.
(a) Does metallic character increase, decrease, or remainunchanged as one goes from left to right across a row of theperiodic table? (b) Does metallic character increase, decrease,or remain unchanged as one goes down a column of the periodictable? (c) Are the periodic trends in (a) and (b) the sameas or different from those for first ionization energy?
Arrange in order of increasing ionization energy. (Use the appropriate <, =, or > symbol to separate substances in the list.) (a) the Group 1A elements Na, H, and Li (b) the Period 4 elements Ga, Se, and K
3. Which one of each of the following pairs has the higher electron affinity? Explain in detail for each case. (a) C or F (b) F or I (c) Te or I (d) O or S (e) S or Se
There are some exceptions to the trends of first and succes-sive ionization energies. For each of the following pairs, explainwhich ionization energy would be higher:(a) IE₁ of Ga or IE₁ of Ge(b) IE₂ of Ga or IE₂ of Ge(c) IE₃ of Ga or IE₃ of Ge(d) IE₄ of Ga or IE₄ of Ge
Identify the true statements concerning the atoms andions of the group 6A elements. (a) The ionic radii are larger than the atomic radii becausethe ions have more electrons than their correspondingatoms.(b) Atomic radii increase going down the group because ofincreasing nuclear charge.(c) The ionic radii increase going down the group becauseof the increase in the principal quantum number ofoutermost electrons.(d) Of these ions, Se2- is the strongest base in water becauseit is largest.
The third ionization energy of bromine is the energy requiredfor which of the following processes?(a) Br1g2¡Br+1g2 + e- (b) Br+1g2¡Br2+1g2 + e-(c) Br1g2¡Br2+1g2 + 2 e- (d) Br1g2¡Br3+1g2 + 3 e-(e) Br2+1g2¡Br3+1g2 + e-
On the basis of periodic trends, determine which element in each pair has the higher first ionization energy (if possible).(a) Al or S (b) As or Sb (c) N or Si (d) O or Cl
Group 4A elements have much more negative electronaffinities than their neighbors in groups 3A and 5A (seeFigure 7.12). Which of the following statements best explainsthis observation? (i) The group 4A elements have much higherfirst ionization energies than their neighbors in groups 3Aand 5A. (ii) The addition of an electron to a group 4A elementleads to a half-filled np3 outer electron configuration.(iii) The group 4A elements have unusually large atomic radii.(iv) The group 4A elements are easier to vaporize than arethe group 3A and 5A elements.
34. According to general trends in the periodic table, predict which element in each of the following pairs has the greater metallic character. (b) Na or K (d) H or Fe (a) B or Al (c) Mg or Ba 1ist
Nitrogen has a greater first ionization energy than phosphorus. What is the best evidence to supportthis observation?
On the basis of periodic trends, determine the element in each pair with the higher first ionization energy (if possible).(a) Sn or I (b) Ca or Sr (c) C or P (d) F or S

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