Test 6/7 Atomic Structure & Periodicity With Answers - Mrs. Georgia Rutschilling, Mount Notre Dame High School Page 7
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14 Which of the following is not true regarding the spectra above?
27.
(A) The 2s peak at 1.72 in spectrum 1 has a lower binding energy that the 2s peak
at3.04 in spectrum 2 due to a decreased effective nuclear charge.
(B) There are 4 valence electrons represented in spectrum 1
(C) The valence electrons in spectrum 1 experience more shielding than those
represented in spectrum 2.
(D) The peak at 52.6 in spectrum 2 is held closer to the nucleus that the peak at 28.6 in
spectrum 1.
(E) The 1s peak in the PES spectrum of Li would have a lower binding energy than
both 1s peaks from spectrum 1 and spectrum 2.
Ionization Energy
The first five ionizaztion energies, in kJ/mol, for a particular element are shown below.
I
I
I
I
I
1
2
3
4
5
786
1577
3232
4356
16,091
28. The element is likely to form an ionic compound in which the charge is:
(A) 1+
(B) 2+
(C) 3+
(D) 4+
(E) 5+
29. Of the choices below, which gives the order for first ionization energies?
(A) Kr > Se > Br > Ga > Ge
(B) Kr > Br > Se > Ge > Ga
(C) Ga > Br > Ge > Kr > Se
(D) DGa > Ge > Se > Br > Kr
(E) Br > Se > Ga > Kr > Ge
30. An element having which of the following electronic configurations would have the greatest
ionization energy?
[He] 2s
2p
2
3
(A)
2s
2p
2
5
[He]
(B)
[Ne] 3s
3p
2
3
(C)
[Ne] 3s
3p
2
5
(D)
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