Periodic Table of Elements (Unit 5 Review)

Who proposed the periodic table of elements?

• Dmitri Mendeleev

• David

• Francium

• Fluorine

What are the rows called in the periodic table?

• Periods

• Groups

• Shells

• Columns

What determines the behavior of elements in the same group?

• Number of valence electrons

• Atomic radius

• Ionization energy

• Electronegativity

What happens to the atomic radius as we go down the periodic table?

• Increases

• Decreases

• Remains constant

• No pattern

What happens to the atomic radius as we go to the right on the periodic table?

• Decreases

• Increases

• Remains constant

• No pattern

What is the trend for ionic radius as the atomic number increases?

• Decreases

• Increases

• Remains constant

• No pattern

What is ionization energy?

• Energy required to remove an electron from an atom

• Energy required to add an electron to an atom

• Energy required to break a chemical bond

• Energy required to form a chemical bond

What is the trend for ionization energy as we go from francium to helium?

• Increases

• Decreases

• Remains constant

• No pattern

What is electron affinity?

• Tendency of an atom to gain an electron

• Tendency of an atom to lose an electron

• Tendency of an atom to form a covalent bond

• Tendency of an atom to form an ionic bond

What is the trend for electron affinity as we go from fluorine to helium?

• Increases

• Decreases

• Remains constant

• No pattern