Periodic Trends Practice

As you move down a group of the periodic table, atomic size generally:

• decreases

• increases

• vary randomly

• remains the same

The largest atom from among the following is:

• Rb

• Fr

• Na

• Li

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The smallest atom from among the following is:

• Cl

• Si

• Mg

• Na

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As the number of electrons added to the same principal energy level increases, atomic size generally:

• varies randomly

• increases

• decreases

• remains the same

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Removing one electron from a gaseous atom results in the formation of a:

• 1^- ion

• 1⁺ ion

• 7^- ion

• 7⁺ ion

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Among the following, which element has the lowest ionization energy?

• Cl

• I

• Na

• Cs

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The smallest particle from among the following is:

• F

• O

• Cl

• Ne

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The least electronegative element from among the following is:

• Cl

• Na

• S

• Cs

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Given the outermost energy level configurations below, what period and group would you find this atom in?

2s¹

• period 2, group 2A

• period 1, group 2A

• period 2, group 1A

• period 1, group 1A

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Given the outermost energy level configuration below, what is the symbol of the element being described?

3s²3p⁴

• O

• S

• Si

• Ge

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