AP Chemistry: Periodic Trends and Ionization Energy Quiz

What is electronegativity a measure of?

• The ability of an atom to lose electrons

• The mass of an atom

• The ability of an atom to attract electrons

• The number of protons in an atom

Which element is known for having the highest electronegativity?

• Iodine

• Magnesium

• Chlorine

• Fluorine

What factor primarily affects electronegativity when comparing elements horizontally on the periodic table?

• Number of neutrons

• Atomic mass

• Shielding effect

• Effective nuclear charge

In terms of electronegativity, which element would have a greater shielding effect?

• Chlorine

• Iodine

• Helium

• Fluorine

Where on the periodic table is electronegativity generally the highest?

• Top right corner

• Top left corner

• Bottom left corner

• Bottom right corner

What does first ionization energy refer to?

• The energy required to split an atom

• The energy required to remove the most tightly held electron

• The energy required to add an electron to an atom

• The energy required to remove the least tightly held electron

Which element has a higher first ionization energy, magnesium or argon?

• Magnesium

• Both have the same

• Argon

• It depends on the temperature

What factor affects the first ionization energy when comparing elements vertically on the periodic table?

• Number of neutrons

• Shielding effect

• Effective nuclear charge

• Atomic mass

Why does aluminum have a lower first ionization energy than magnesium, despite the trend?

• Magnesium has more energy levels

• Aluminum has more protons

• Magnesium has a lone electron in the 3p sublevel

• Aluminum has a lone electron in the 3p sublevel

What is a general characteristic of a filled sub-level in terms of ionization energy?

• It has no effect

• It is more stable

• It is less stable

• It decreases ionization energy