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?
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how will the atomic number of an element change after its nucleus emit an alpha particle?
when an atom of an element emits alpha particles,the atomic number of the atom reduces by two
while the mass number by four, an alpha particle is a helium nucleus, it has a
charge of +2and a mass of 4 amu.
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