Lesson 9 Test: Ionization Energy

Valence electrons are those electrons in the outermost layers of an atom.

Sodium family members have two valence electrons.

The element Calcium has two valence neutrons.

The element Bromine is a member of halogen family and has six valence electrons.

Sometimes atoms will lose electrons to form bonds with other atoms.  The energy required to move electrons is called ionization energy.

Members of the noble gas family have very low ionization energy values that makes them very non-reactive.

Members of the sodium family have very low ionization energy values that makes them very non-reactive when compared to other elements on the periodic table of elements.

Lithium is a member of the sodium family and has a very low ionization energy value.  This makes lithium a very reactive element.

Atoms of the elements Oxygen and Sulfur have six valence electrons.

All members of noble gas family have eight valence electrons and very high ionization energy values.

Without looking at a periodic table, list all members of the noble gas family.  There are 6 of these, spell the name out, begin with capital letter and put a space between each.  No punctuation.  Check your spelling.  Use your mnemonic aid!