Periodic Table and Atomic Concepts

Who arranged the elements into periods and groups?

• Isaac Newton

• Albert Einstein

• Marie Curie

• Dmitri Mendeleev

What happens to the atomic size as you move down the periodic table?

• It disappears

• It increases

• It stays the same

• It decreases

Which element is likely to have a high ionization energy?

• Francium

• Helium

• Sodium

• Potassium

What is electron affinity?

• The number of protons in an atom

• The desire of an atom to gain an electron

• The energy needed to remove an electron

• The size of an atom

Which element has the highest electronegativity?

• Neon

• Oxygen

• Fluorine

• Chlorine