Periodic Trends

Who is credited with creating the periodic table that we use today?

• Marie Curie

• Isaac Newton

• Dmitri Mendeleev

• Albert Einstein

What happens to the atomic radius as you move down a group in the periodic table?

• It stays the same

• It disappears

• It decreases

• It increases

Which element is likely to have a high ionization energy?

• Sodium

• Helium

• Potassium

• Francium

What is electron affinity?

• The number of protons in an atom

• The size of an atom

• The energy released when an atom gains an electron

• The energy needed to remove an electron

Which element is known for having the highest electronegativity?

• Neon

• Fluorine

• Oxygen

• Chlorine