Periodic Trends Quiz

What happens to ionization energy as you move across a period from left to right?

• It fluctuates randomly.

• It remains constant.

• It decreases.

• It increases.

Why do elements like fluorine have high electron affinity?

• Because they have a large atomic size.

• Because they have a low number of protons.

• Because they have a small atomic size and need only one more electron for a full outer shell.

• Because they have a full outer shell.

Which group of elements does not follow the electron affinity trend?

• Transition metals

• Halogens

• Noble gases

• Alkali metals

How does electronegativity change as you move across a period?

• It varies unpredictably.

• It decreases.

• It remains the same.

• It increases.

Which country is named after an element in the periodic table?

• Australia

• Germany

• India

• Argentina