Practice Glossary Of Terms (5) - Unit 2: Atomic Structure

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6 sample questions

Question 1.
Define atomic number.
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What does Z stand for?
Question 2.
What is an isotope?
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Think about elements with different masses.
3Question 3.
What does atomic number represent?
- Number of neutrons
- Number of protons
- Mass of the atom
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Think about what makes one element different from another.
4Question 4.
True or False: Isotopes have the same number of neutrons.
- True
- False
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Look at what defines an isotope.
Question 5.
Consider an atom with 8 protons and 10 neutrons. What is its atomic number, mass number, and which element is it?
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Identify atomic number first.
Question 6.
An element has two isotopes: Isotope C has a mass of 14 u (80% abundance) and Isotope D has a mass of 16 u (20% abundance). Compute the average atomic mass.
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Use the weighted average formula.

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