Asked by kelvin calin
Which change occurs when an atom undergoes alpha decay?
The nucleus loses mass and a new element is produced.
The nucleus gains a proton and a new element is produced.
The nucleus loses energy and remains the same element.
The nucleus loses a neutron and remains the same element.
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The nucleus loses mass and a new element is produced.
Explanation: Alpha decay emits an alpha particle (2 protons + 2 neutrons), so the original nucleus loses 4 units of mass number and 2 units of atomic number, producing a different element.
Explanation: Alpha decay emits an alpha particle (2 protons + 2 neutrons), so the original nucleus loses 4 units of mass number and 2 units of atomic number, producing a different element.
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