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Question 1 of 4

When Alpha particles are scattered through a radioactive atom to form a new atom,…

A

The atomic mass number is decreased by 4 while the atomic number increases by 2.

B

The atomic mass number is decreased by 4 and atomic number by 2. 

C

The atomic mass number is decreased by 2 and the atomic number by 4.

D

Atomic mass number is decreased by 2 while atomic number increases by 4. 

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