Name: 
 

Chemistry – Atomic and Molecular Structure Lesson 1-5 Posttest



True/False
Indicate whether the statement is true or false.
 

 1. 

Ionization energy is the amount of energy need to remove an electron from a negative atom.
 

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 2. 

As you go from left to right on the Periodic Table of the Elements, there are ________ in each element.
a.
fewer electrons
b.
fewer protons
c.
more protons
d.
larger electron shells
 

 3. 

As you move from top to bottom of the Periodic Table of the Elements, there is a decrease in ___________.
a.
ionization energy
b.
electronegativity
c.
ionization energy and electronegativity
d.
neither ionization energy nor electronegtivity
 

 4. 

Valence electrons are _________.
a.
those in the outermost shell of an atom
b.
the ones that make an ion negative
c.
those that are most tightly bound
d.
those that belong to another atom
 

 5. 

Electrons in the shells furthest from the nucleus require _________.
a.
matching protons
b.
less energy to remove them from the atom
c.
more energy to remove them from the atom
d.
matching neutrons
 



 
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