Class 12 Chemistry Nuclear Chemistry Radioactivity and a,b and g rays

Medium

When a radioactive nucleus emits an $\alpha$-particle,the mass of the atom

A
Increases and its atomic number decreases
B
Decreases and its atomic number decreases
C
Decreases and its atomic number increases
D
Remains same and its atomic number decreases

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Class 12 Questions

Class 12

Chemistry Questions

Chapter

Nuclear Chemistry

Subtopic

Radioactivity and a,b and g rays

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