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do you smell..... what's coo
Lv 4
do you smell..... what's coo asked in Science & MathematicsChemistry · 1 decade ago

Brilliant minds in Chemistry. I need your help!!?

I really need answers to these questions.

A. When an alpha particle is emitted, how do the mass number and the atomic number change, if at all?

2. When three quater of a radioactive isotope has decayed to become the stable daughter product,---------- half lives have occured.

1 Answer

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  • Mike W
    Lv 6
    1 decade ago
    Favorite Answer

    An alpha particle is 2 protons and 2 neutrons, so mass number goes down by 4 but atomic number by only 2 as only 2 protons.

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