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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identify the missing isotope in the nuclear reaction below: 131 53I → ? + β
131 53I → ?+ β
The equation above depicts a beta emission, the atomic number increases
by one while the atomic mass remain the same.
therefore , the missing nuclide is
xenon-131 and the equation will be 131
53I →131 54Xe+
β
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