Ionization Energy Trends Quiz

What is the general trend for ionization energy on the periodic table?

• It increases going up and to the right.

• It increases going down and to the left.

• It decreases going up and to the right.

• It remains constant across the table.

Which element has the highest first ionization energy among sodium, magnesium, and silicon?

• Sodium

• Magnesium

• Silicon

• All have the same ionization energy

For the second ionization energy, which element requires the most energy to remove an electron?

• Sodium

• All require the same energy

• Magnesium

• Silicon

When removing a third electron, which element has the lowest ionization energy?

• All have the same ionization energy

• Sodium

• Magnesium

• Silicon

Why does removing a core electron require more energy than a valence electron?

• Valence electrons are more tightly bound than core electrons.

• Core electrons are closer to the nucleus and more tightly bound.

• Core electrons are further from the nucleus and less tightly bound.

• Core electrons are less important than valence electrons.