Earth Science
Name_____________________________
Chapter 8
Period_____________________________
Worksheet
Date______________________________
__________________________________________________________________________________
Energy Levels, Ions, and Bonds
Comparing Particles
1. Compare and contrast each of the particles below by completing each table. (0.25 points for each row)
Charge
( + or -)
Particle
Mass
(1 or 0)
Relative Size
Location
(Lg or Sm) (Nucleus or e- Cloud)
Proton
Neutron
Electron
Particle
Charge
(Y or
N)
Particle formed
by…
Mass
compared to
Normal atom
Could be
radioactive
(Y or N)
Give an
Example
Isotope
Ion
Comparing Bonds
2. Compare and contrast each of the bonds below by completing the table. (0.25 points for each row)
Bond
Forms
bond by…
Bonds held
together by…
Forms a molecule
or compound?
Give an
example
Ionic
Covalent
Questions (0.25 points each)
3. Can Hydrogen hold the same number of electrons in its outer layer that Oxygen could hold in its outer
layer? Explain your answer.
4. Which is stronger, an ionic bond or a covalent bond. Why?
5. What does an atom have to do to become an ion?
Determining Charges (0.25 points each)
As you answer the questions using the diagrams below, remember that charges are developed by gaining or losing negatively
charged electrons. When there are just enough electrons to balance out the number of protons in an atom, the atom is neutral, if
not, the atom will carry a charge.
_____ 1. Which diagram shows a neutral charge?
_____ 2. Which diagram has a +2 charge?
_____ 3. Which diagram would have a -1 charge if an electron was added?
_____ 4. Which diagram would have a +1 charge if an electron was removed?
_____ 5. If 2 electrons were added, which diagram would have a -1 charge?
_____ 6. Which diagram would become neutral if a -1 charge is removed?
_____ 7. Which diagram would need 3 electrons to gain a -2 charge?
_____ 8. Which diagram would become neutral by gaining 2 negative charges?
_____ 9. Could any of the above diagrams become neutral by the addition of 6 electrons?
_____ 10. Can any of the diagrams develop a -4 charge by the removal of 2 electrons?