Practice Mass Number (4.5.2) - Structure of the Atom

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9 questions

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6 sample questions

Question 1.
What is the mass number of an atom with 8 protons and 8 neutrons?
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Add the number of protons and neutrons.
Question 2.
Define an isotope.
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Consider the atomic number and how it affects mass.
3Question 3.
What is the mass number of an atom that has 5 protons and 7 neutrons?
- 12
- 10
- 5
- 7
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Remember to add the two quantities together.
4Question 4.
True or False: All isotopes of an element have the same chemical properties.
- True
- False
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Think about how chemical behavior is determined.
Question 5.
A sample of an element X has an atomic number of 6. If its mass number is 14, determine the number of neutrons and provide the difference in mass between isotopes of this element.
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Use the formula mass number = protons + neutrons.
Question 6.
Find two isobars of mass number 40 and explain their relationship.
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Assess their atomic numbers to determine how they differ.

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