Quiz Questions On Chemistry

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Register to read the introduction… What four elements make up 96% of all living matter? _________________________________________

Concept 2.2 An element’s properties depend on the structure of its atoms
2. Below is a model of an atom of helium, correctly label the electrons, protons, neutrons, and atomic nucleus.

3. What is the atomic number of helium? _________ Its atomic mass? ________

4. Consider this entry in the periodic table for carbon.
What is the atomic mass? ______ atomic number? _______
How many electrons does carbon have? _______ neutrons? _______

5. What are isotopes? Use carbon as an example.

6. Explain radioactive isotopes and one medical application that uses them.

7. Which is the only subatomic particle that is directly involved in the chemical reactions between atoms?
8. What is potential
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You will need to master the chart and the information in it. Using the functional groups above, see if you can answer the following prompts:
a. –NH2 ______________________________________________________________________________________________________________
b. Can form cross-links that stabilize protein structure ________________________________________
c. Key component of ATP ______________________________________________________________
d. Can affect gene expression ___________________________________________________________
e. CH3 ________________________________________________________________________________________________________________
f. Is always polar _____________________________________________________________________
g. Determines the two groups of sugars ___________________________________________________
h. Has acidic properties ________________________________________________________________
i. –COOH ___________________________________________________________________________
j. Acts as a base ______________________________________________________________________

10. Identify the functional group(s) found in each of the following molecules.

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