Multiple Choice
When an atom loses an alpha particle,
A) its atomic number decreases by 2 units and its mass number decreases by 4 units
B) its atomic number increases by 1 unit but its mass number remains unchanged
C) its mass number decreases by 1 unit but its atomic number remains unchanged
D) neither its atomic number nor its mass number changes
Correct Answer:
Verified
Correct Answer:
Verified
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