Exploring Periodic Trends and Energies

Which element has the highest electronegativity value?

• Hydrogen

• Oxygen

• Fluorine

• Nitrogen

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DOK Level 1: Recall

What is the general trend of electronegativity across a period in the periodic table?

• It decreases

• It increases

• It remains constant

• It fluctuates

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DOK Level 1: Recall

Which factor does NOT affect ionization energy?

• Atomic radius

• Nuclear charge

• Atomic mass

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DOK Level 1: Recall

Compare the electronegativity values of sodium (Na) and chlorine (Cl). Which statement is correct?

• Sodium has a higher electronegativity than chlorine.

• Chlorine has a higher electronegativity than sodium.

• Both have the same electronegativity.

• Electronegativity cannot be compared between these elements.

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DOK Level 2: Skill/Concept

Explain why ionization energy generally increases across a period.

• Due to increased electron shielding

• Due to increased nuclear charge

• Due to decreased atomic radius

• Due to increased atomic mass

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DOK Level 2: Skill/Concept

How does the ionization energy change as you move down a group in the periodic table?

• It increases

• It decreases

• It remains constant

• It fluctuates

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DOK Level 1: Recall

Which of the following statements best explains why fluorine has a higher electronegativity than iodine?

• Fluorine has a larger atomic radius.

• Fluorine has more electron shielding.

• Fluorine has a higher nuclear charge.

• Fluorine has a smaller atomic radius.

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DOK Level 2: Skill/Concept

Predict the trend in electronegativity values for the elements in Group 17 (halogens) as you move down the group.

• Electronegativity increases

• Electronegativity decreases

• Electronegativity remains constant

• Electronegativity fluctuates

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DOK Level 2: Skill/Concept

Which of the following best describes the relationship between ionization energy and reactivity in metals?

• Higher ionization energy means higher reactivity.

• Lower ionization energy means higher reactivity.

• Ionization energy does not affect reactivity.

• Reactivity is independent of ionization energy.

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DOK Level 2: Skill/Concept

Which of the following elements is most likely to form an anion with a -1 charge based on its electronegativity?

• Sodium (Na)

• Chlorine (Cl)

• Magnesium (Mg)

• Aluminum (Al)

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DOK Level 1: Recall