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What does the number below each element's symbol represent?

A. The average number of isotopes
B. The average atomic mass
C. The average atomic number
D. The average mass of the ions

2 Answers

4 votes

Answer:

The average atomic mass.

Step-by-step explanation:

User Kel
by
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5 votes

Answer:

B. The average atomic mass.

APEX

User Khotyn
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