Test 6/7 Atomic Structure & Periodicity With Answers - Mrs. Georgia Rutschilling, Mount Notre Dame High School Page 14
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14First Ionization energy in kJ
Name
Melting point in K
mol-1
Lithium
454
519
Sodium
371
494
Potassium
337
418
65. Atoms of which element have the highest electronegativity?
a. Li, since it is most likely to gain electrons
b. Li, since it are most likely to lose electrons
c. K, since it are most likely to gain electrons
d. Na, since it is the most reactive
66. Atoms of which element have the largest atomic radius?
a. Li, since it has the fewest number of protons
b. K, since it has the greatest number of occupied principal shells
c. K, since it has the greatest number of protons
d. It is not possible to tell without further information
67. From atoms of which element is it easiest to remove an electron?
a. Li, since the first ionization is the highest
b. K, since Coulomb’s law predicts the force of attraction between the nucleus and the
valence electron to be the lowest
c. Li, since it has the fewest number of protons
d. K, since potassium wants to become ‘happy’ and a achieve a noble gas electronic configu-
ration
68. Atoms of which element have the highest second ionization energy?
a. Li, since its second electron is closest to the nuclear charge
b. Li, since it has the highest nuclear charge
c. K, since it has the highest nuclear charge
d. All second ionization energies are equal
69. The most common ion of which element, will be smaller than the corresponding, parent atom?
a. Li
b. Na
c. K
d. All three elements
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