what do you think you know about physics, physics is the study of matter under the effect of energy, but does this includes solid states bodies, atoms at ground states, object at microscopic size or object moving faster than light? these and more is what prompt me to ask again what is physics?
what will be charge of a nucleus when it loses an alpha particle
when an atom loss or emit an alpha particle, its nuclear
charge drop by +2e while its nuclear mass is dropped by 4 amu. consequently a
new atom is formed that two position up
in the periodic table of element.
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