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Foundational Chemistry part 2 Concept Review
By John Lundy
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Last updated almost 8 years ago
10 questions
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Note from the author:
A review assignment looking Foundational Chemistry concepts learned thus far
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Question 1
1.
How many neutrons do carbon-12 have, respectively?
Isotopes
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Question 2
2.
How many neutrons do carbon-13 have, respectively?
Isotopes
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Question 3
3.
An atom may give, take, or share electrons with another atom to achieve a full valence shell, the most stable
electron configuration. Looking at this figure, how many electrons do elements in group 1 need to lose in
order to achieve a stable electron configuration?
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Question 4
4.
How many electrons do elements in groups 14
need to gain to achieve a stable configuration?
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Question 5
5.
How many electrons do elements in groups 17
need to gain to achieve a stable configuration?
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Question 6
6.
If xenon has an atomic number of 54 and a mass
number of 108, how many neutrons does it have?
54
27
100
108
Question 7
7.
Atoms that vary in the number of neutrons found in
their nuclei are called ________.
ions
neutrons
neutral atoms
isotopes
Question 8
8.
Which of the following statements is not true
Water is polar.
Water stabilizes temperature
Water is essential for life
Water is the most abundant molecule in the
Earth’s atmosphere.
