11785924
Description
Quiz by Holly Nephew, updated more than 1 year ago
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Created by Holly Nephew
almost 7 years ago
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Question 1
Question
What does the atomic number signify?
Answer
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The number of electrons in an atom
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The number of protons in an atom
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The number of neutrons + protons in an atom
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The number of protons + electrons in an atom
Question 2
Question
If the number of electrons in an atom increases, so does its mass number.
Answer
- True
- False
Question 3
Question
What is the unit used to measure atomic mass units?
Answer
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imvu
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amu
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emu
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no
Question 4
Question
What is the percent abundance of an isotope whose relative abundance is 0.65?
Answer
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35%
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45%
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65%
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69%
Question 5
Question
Check all statements that are true:
Answer
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The relative abundances of the isotopes of an element add up to 100.
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Each isotope of an element has a different number of electrons.
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The atomic number signifies which element an atom is part of.
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Isotopes are atoms of an element that contain the same number of protons but a different number of neutrons in the nucleus.
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