The element chlorine is in a group known as the ________.
A) transition metals
B) noble gases
C) alkali metals
D) alkaline earth metals
E) halogens
Correct Answer:
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Q200: What is the molecular formula for heptane?
A)C6H12
B)C6H14
C)C7H14
D)C7H16
E)C7H18
Q201: Which one of the following is a
Q202: How many electrons are there in one
Q203: Of the following,only _ is not a
Q204: The atomic number of an atom of
Q206: Which pair of elements would you expect
Q207: How many protons are there in one
Q208: How many total electrons are in the
Q209: If a iron atom loses 2 electrons
Q210: The element lithium is in a group
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