Name_________________________
Physical Science A
C/By
______________________
Due Date _________________
Code_________________
Period_____________ Earned Points ____________
PSA 2N3 Bonds, Chemical Bonds
Classroom Objectives
PSA 3-04 Describe ionic, covalent, and metallic bonds
PSA 3-05 Describe polar bonds and molecules.
PSA 3-06 Use chemical formulas to name any inorganic compound.
Essential Learning Skills
ELS PSA 16 Identify the different chemical bonds.
ELS PSA 17 Be able to construct and name basic ionic compounds.
ELS PSA 18 Read and decipher chemical formulas and equations.
I. Describe ionic, covalent, and metallic bonds
A. When two atoms ______________________________:
1. Atoms with ______________________________ than 4 electrons will
______________________________ away what they have
2. Atoms with ______________________________ than 4 electrons will
______________________________ what they can
B. Electrons are ______________________________, forming charged atoms
1. Called ______________________________: charged particles
2. ______________________________: A ______________________________ charged particle
– the one that takes the electrons
3. ______________________________: A ______________________________ charged particle
– the one that gives away the electrons
4. The positive and negative ion ______________________________ to each other
C. ______________________________ ______________________________: A chemical bond
formed by the ______________________________ of electrons and the attraction of the resulting ions
D. ______________________________ ______________________________: Bonds that are
formed when valence electrons are ______________________________
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1. When the atoms ______________________________, the electron stays with the
______________________________ atom
2. No ______________________________ are formed
3. This “______________________________” the atoms into
“______________________________” the orbital are full.
4. The electron goes around ______________________________ nuclei
E. ______________________________ ______________________________: Covalent bonds
between ______________________________ ______________________________ of metals atoms
1. Electrons are ______________________________ not between two atoms, like a covalent bond
2. But between ______________________________ the atoms like a
______________________________ bond
3. The ______________________________ atoms form ______________________________:
Positively charged ions
4. They are ______________________________ by a “sea” of electrons (-)
5. Overall, the metal has ______________________________
II. Describe polar bonds and molecules.
A. Electrons are not always shared ______________________________ due to
1. ______________________________ of the atom
2. ______________________________ of the nucleus
3. ______________________________ number of electrons
B. One side is ______________________________ negative
C. The other is ______________________________
D. ______________________________ ______________________________: A covalent bond in
which electrons are ______________________________ shared equally
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E. ______________________________ ______________________________: A molecule with
polar bonds that is unbalanced
F. ______________________________ ______________________________: A molecule in which
electrons are shared equally or polar bonds are balanced
III. Use chemical formulas to name any inorganic compound.
A. Use the ______________________________ numbers to identify how many of the
______________________________ ion will attach.
B. ______________________________ charge must = ______________________________
C. “______________________________” method
1. Write down the ______________________________
2. Identify the ______________________________ numbers
3. ______________________________!
4. Make it the ______________________________ ratio
5. By agreement the ______________________________ always goes
______________________________.
6. The ______________________________ ion is always identified not as the element but as the
______________________________ (ends in –ide)
5. Examples
D. Naming covalent compounds
1. Most are named the ______________________________ way as ionic, pretending that the
______________________________ is an ion
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2. ______________________________ are named based on a system
______________________________ in use (carbon dioxide, water, etc.)
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