10. Periodic Properties of the Elements
Periodic Trend: Electron Affinity
10. Periodic Properties of the Elements
Periodic Trend: Electron Affinity - Video Tutorials & Practice Problems
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Electron Affinity is the energy released from the addition of an electron to a gaseous atom or ion.
Electron Affinity
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concept
Periodic Trend: Electron Affinity
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concept
Periodic Trend: Electron Affinity
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Generally, electron affinity increases moving from left to right across a period and going up a group.
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example
Periodic Trend: Electron Affinity Example 1
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concept
Periodic Trend: Electron Affinity
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Problem
ProblemWhich of the following represents the third electron affinity of Si?
A
B
C
D
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Problem
ProblemDetermine which atom in the following set has the most exothermic electron affinity:N, O, C, B, Ne
A
N
B
O
C
C
D
B
E
Ne
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Problem
ProblemRank the following elements in order of increasing electron affinity:Cs, Hg, F, S
A
Hg < S < F < Cs
B
Hg < F < S < Cs
C
Cs < S < F < Hg
D
Cs < S < Hg < F
E
Cs < Hg < S < F
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PRACTICE PROBLEMS AND ACTIVITIES (19)
- Which of the following processes will release the most energy? (LO 6.9) (a) (b) (c) (d)
- Write an equation for the first electron affinity of helium. Would you predict a positive or a negative energy...
- If the electron affinity for an element is a negative number, does it mean that the anion of the element is mo...
- Which of the following, I or I-, will have a negative electron affinity?
- Why does ionization energy increase regularly across the periodic table from group 1A to group 8A, whereas ele...
- Choose the element with the more negative (more exothermic) electron affinity from each pair. c. C or N
- Choose the element with the more negative (more exothermic) electron affinity from each pair. b. B or S
- Choose the element with the more negative (more exothermic) electron affinity from each pair. a. Na or Rb
- Choose the element with the more negative (more exothermic) electron affinity in each pair. a. Mg or S b. K o...
- The electron affinities, in kJ>mol, for the group 11 and group 12 metals are as follows: Cu -119 Zn 7 0 ...
- Hydrogen is an unusual element because it behaves in some ways like the alkali metal elements and in other wa...
- The electron affinity of sodium is lower than that of lithium, while the electron affinity of chlorine is hig...
- Of the following elements, ________ has the most negative electron affinity.
- Which reaction below represents the second electron affinity of s?
- Rank the following elements by electron affinity, from most positive to most negative ea value.
- Which element has the highest (most negative) electron affinity?
- Which reaction below represents the electron affinity of li?
- Which one of the following equations correctly represents the process involved in the electron affinity of x?
- Which element would most likely have an electron affinity measuring closest to zero? Na Al Rb Ar