The atomic mass of an element is
A) the average atomic mass of its isotopes according to their proportions in nature.
B) the average mass number of its isotopes according to their proportions in nature.
C) the average atomic number of its isotopes according to their proportions in nature.
D) the atomic mass of its most abundant isotope.
Correct Answer:
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Q2: Which of the following is a heterogeneous
Q3: The statement that the elements in a
Q4: The least active of the following nonmetals
Q5: The most active of the following nonmetals
Q6: Which of the following statements is not
Q8: The most abundant element in the universe
Q9: The least active of the following metals
Q10: Known elements have atomic numbers up to
A)
Q11: The largest number of elements are classed
Q12: Carbon
A) is a typical metal.
B) is a
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