Periodic Trends Pogil Quiz

Which value represents the atomic radius in Model 1?

• Element Symbol

• Atomic Radius (pm)

• Atomic Number

• Electron Shell Diagram

What is the trend in atomic radius as you go down a group in Model 1?

• Decreases

• Increases

• Remains constant

• No trend

Using your knowledge of Coulombic attraction and the structure of the atom, explain the trend in atomic radius that you identified in Question 2.

• The number of protons in the nucleus decreases

• The distance between the nucleus and outer shell of electrons increases

• The distance between the nucleus and outer shell of electrons decreases

• The number of protons in the nucleus increases

What is the trend in atomic radius as you go across a period (left to right) in Model 1?

• No trend

• Increases

• Remains constant

• Decreases

Using your knowledge of Coulombic attraction and the structure of the atom, explain the trend in atomic radius that you identified in Question 4.

• The number of protons in the nucleus increases

• The number of protons in the nucleus decreases

• The distance between the nucleus and outer shell of electrons increases

• The distance between the nucleus and outer shell of electrons decreases

Why does ionization (removing an electron from an atom) take energy?

• Because the nucleus repels the electrons

• Because the nucleus has a weak hold on its electrons

• Because the electrons repel each other

• Because the nucleus has a tight hold on its electrons

Which takes more energy, removing an electron from an atom where the nucleus has a tight hold on its electrons, or a weak hold on its electrons?

• It depends on the number of electrons

• Weak hold on electrons

• Both require the same amount of energy

• Tight hold on electrons

What is the trend in ionization energy as you go down a group?

• Decreases

• Increases

• No trend

• Remains constant

Using your knowledge of Coulombic attraction and the structure of the atom, explain the trend in ionization energy that you identified in Question 7.

• The distance between the nucleus and outer shell of electrons increases

• The distance between the nucleus and outer shell of electrons decreases

• The number of protons in the nucleus increases

• The number of protons in the nucleus decreases

What is the trend in ionization energy as you go across a period?

• Increases

• Decreases

• No trend

• Remains constant