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Subject Test Chemistry

Question 14 of 17

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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

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