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Homework exercises on Chemical Bonding for a Physical Science course. Also refer to Chemistry, compounds, molecules, elements, education, distance learning, Ron Kurtus, School for Champions. Copyright © Restrictions
Chemical Bonding - Homework Answers
After you have completed the Chemical Bonding Homework, you can refer to these answers. Although it is better to have known the answer from your reading, the process of writing the correct answer on your homework sheet will help you remember the concepts.
1. If the atomic number of an element is 10, how many electrons does it have?
10.
2. What are the maximum number of electrons in the second orbit?
8.
3. Is it possible for there to be only 1 electron in the first orbit and 3 in the second orbit? Why or why not?
Usually the first orbit must be filled before the second is started.
4. What is similar about elements in a Periodic Table column?
They have similar chemical properties.
5. Why do elements tend to combine?
To fill their outer orbit.
6. What is the result of the combination or bonding of two or more atoms called?
A molecule. Also a compound, if the atoms are different.
7. If two dangerous chemicals combine, will the result also be dangerous? Why or why not?
Not necessarily. The compound usually has completely different properties than its elements.
8. What is the chemical symbol for:
a. Hydrogen? H
b. Oxygen? O
c. Carbon? C
d. Sodium? Na
e. Gold? Au
9. Is the oxygen atom ever seen by itself in nature? Why or why not?
No. It is usually seen as an O2 molecule, because O by itself is chemically unstable.
10. Helium and Neon are noble gases. What elements do they combine with?
They don't combine..
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