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Chemistry OCR A
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Atomic structure and isotopes
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Question 2
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Which atom is
not
an isotope of chromium?
Number of neutrons
Mass number
A
28
52
B
29
53
C
30
55
D
30
54
A
A
B
B
C
C
D
D
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Atomic structure and isotopes Questions
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Atomic structure and isotopes
