Periodic Table and Transition Metals Quiz

Which of the following describes the trend in atomic radius across Period 3 from sodium to chlorine?

• Increases

• Decreases

• Remains constant

• First increases, then decreases

Which group in the Periodic Table contains elements that form ions with a +1 charge?

• Group I

• Group II

• Group VII

• Group 0

Which of the following statements about Group I elements is correct?

• They are gases at room temperature

• They form acidic oxides

• They are stored under water

• They react vigorously with water

Which property of Group VII elements increases down the group?

• Electronegativity

• Colour intensity

• Reactivity

• Melting point

Which element is the most reactive halogen?

• Iodine

• Bromine

• Fluorine

• Chlorine

Which element exists as a diatomic molecule and is found in Group VII?

• Argon

• Oxygen

• Chlorine

• Lithium

The noble gases are unreactive because:

• They are solids at room temperature

• They have high melting points

• They have a full outer electron shell

• They conduct electricity well

Which of the following decreases down Group I elements?

• Density

• Melting point

• Atomic radius

• Reactivity

When potassium reacts with water, the solution formed is:

• Neutral

• Acidic

• Basic

• Non-aqueous

Which of the following shows the correct order of reactivity in Group VII elements?

• I₂ > Br₂ > Cl₂ > F₂

• F₂ > Cl₂ > Br₂ > I₂

• Cl₂ > F₂ > Br₂ > I₂

• Br₂ > Cl₂ > F₂ > I₂