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SAT Subject Test
Each of the questions or incomplete statements below is followed by five suggested answers or completions. Select the one that is best in each case.
For elements in the left-most column of the periodic table, properties that have increasing values as the atomic number increases include which of the following?
| I. | Ionization energy (potential) |
| II. | Atomic radius |
| III. | Atomic mass |
Select an Answer
I only
Correct Answer:
No
III only
Correct Answer:
No
I and II only
Correct Answer:
No
II and III only
Correct Answer:
Yes
I, II, and III
Correct Answer:
No
View Correct Answer
Going down a group of the periodic table, atomic radius and atomic mass increase. Because effective nuclear charge is about the same within a group and radius increases going down a group, ionization energy decreases going down a group.
Question Difficulty:
medium